Ten drills, one shop, zero excuses — which Hougen HMD904 earns permanent bench space?
I don’t trust magnets—until they hold a 3″ cutter to a 1/2″ plate. I’ve sat on shop floors, cursed wobble, and learned fast what a good mag drill actually does for your day. Short story: a solid mag drill saves time, sweat, and expensive rework.
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Editor's Choice
1
HMD904S Swivel Base Fabricator's Kit
Top pick for precision and flexibility
9.5/10
EXPERT SCORE
The swivel-base kit combines a superb magnetic hold with the ability to rotate for hard-to-reach cuts, making it my go-to for tight or angled work. The included cutter kit and coolant make it a turnkey tool for professional shops.
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Pros
Swivel base adds positioning flexibility
30% power increase in two-stage magnet mode
Comes with cutters, coolant, and adapter kit
Made in USA quality and robust construction
Cons
Higher price point than non-swivel models
Quill may need occasional adjustment to prevent drift
Why I chose this as Editor's Choice
The swivel-base version brings a functional advantage: once the magnet is engaged, you can still fine-tune position by rotating the base instead of struggling to reposition the whole assembly. That small feature makes setups on beams, curved surfaces, and confined spaces much faster.
Performance and package contents
The kit delivers a 450 RPM motor, two-stage magnet with increased power, integrated coolant, a 1/2" chuck and a Rotabroach cutter set with pilots and wrenches.
Users report consistent hole quality and easier positioning compared with fixed-base units.
In daily use I noticed reduced setup time and fewer clamps needed — the swivel base changes the game for one-person operations.
Practical considerations and minor drawbacks
It’s a premium kit, so the up-front investment is higher, but it pays off through faster setups and better ergonomics.
A few owners mention the drill quill needing minor adjustment to stay fully retracted; that’s an easy tweak but worth knowing.
Overall, if you prioritize speed, repeatability, and flexibility for professional work, this kit is hard to beat.
Best Seller
2
HMD904 115V Portable Magnetic Drill
Reliable workhorse for most fabricators
9.1/10
EXPERT SCORE
This is a dependable, well-built magnetic drill that handles a broad range of fabrication tasks without fuss. It’s the unit I’d recommend to someone stepping up from handheld drills to a proper mag drill.
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Pros
Proven and durable construction
Lightweight and easy to position
Lift detector safety system and LED pilot light
Two-speed design and strong magnet hold
Cons
Heavier than small hobby drills at ~35 lbs
Limited to 115V operation—no cordless option
Why I like this model
I've used this model enough to trust it as a daily driver in shops that cut structural steel, repair fleets, or do on-site metalwork. Its combination of a compact frame, reliable magnet, and user-friendly controls make setup fast and repeatable.
Main features that matter
Large 1-1/2" x 2" capacity with a 450 RPM motor suited to annular cutters.
Ergonomic housing with hidden motor cord keeps things tidy and safer around welds and obstructions.
Safety features like a lift detector system reduce the chance of workpiece shift during cutting.
I like that the LED pilot light helps when I’m working under vehicles or in dim corners. If you need consistent hole quality and repeatability, this model does the job without complex adjustments.
Practical notes and caveats
It’s not light as a feather, so plan for how you’ll move it between jobs—though it’s still portable compared with older mag drills.
No battery option; if you need off-grid cutting, you’ll have to use a generator or choose a different platform.
Keep spare cutters and a coolant bottle on hand to maximize uptime.
Premium
3
HMD904 Swivel Base 115V Magnetic Drill
Handy swivel base for tight spaces
9/10
EXPERT SCORE
The swivel-base variant delivers excellent holding power with the added ability to rotate for precise alignment. It’s a balanced choice for pros who frequently work in constrained or awkward positions.
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Pros
Swivel base for improved positioning
Compact and portable for on-site work
Good build quality and stable magnet
Cons
A bit heavier than non-swivel models
Swivel mechanism adds complexity to maintenance
What sets it apart
I picked this swivel-base version because it makes lining up holes much easier than fixed-base drills. When you’re working on structural members or irregular geometry, the ability to engage the magnet and then fine-tune the cutting axis by rotating the base is a real time-saver.
Key capabilities
115V operation with a 450 RPM motor and typical HMD904 capacity for annular cutters.
Sturdy construction with a swivel mounting that maintains magnetic strength while permitting adjustment.
In real-world use the swivel base often eliminates the need for additional clamps or repositioning, which is a huge practical benefit when I’m working solo.
Practical notes
Regularly inspect and clean the swivel interface to prevent grit buildup that can reduce smoothness over time.
The added mechanism slightly increases weight and service points, so factor that into a maintenance schedule.
Premium
4
HMD904 Fabricator's Kit with Coolant
Best complete kit for fabricators
9/10
EXPERT SCORE
This kit gives you a full, ready-to-go mag-drill setup with coolant and a cutter set that noticeably speeds up shop work. It balances power and portability well for everyday fabrication tasks.
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Pros
Includes cutters, coolant bottle, and 1/2" chuck
Strong 450 RPM motor with good torque
Compact and easy to position on workpieces
Well-made components and useful accessories
Cons
Higher price compared with bare units
Some customers reported missing items in packages
Overview
I found this full fabricator's kit to be one of the most practical packages for small shops and mobile techs. It pairs the core HMD904 platform with an integrated coolant bottle, 1/2" drill chuck and a Rotabroach cutter kit so you can start cutting a variety of hole sizes out of the box.
Key features and benefits
Includes a 1/2" chuck, adapter, pint of coolant, and a 12002 Rotabroach cutter kit with pilots and wrenches.
Compact footprint and a 450 RPM motor that handles annular cutters up to roughly 1-1/2" diameter and 2" depth of cut.
Pilot light and ergonomic housing make setup easier in dim or awkward spaces.
These accessories save time and spare trips to the tool crib. In practice I appreciated having cutters and coolant ready — the coolant noticeably reduced cutter wear on longer runs.
Limitations and practical tips
The kit is pricier than the base unit, so it makes the most sense if you need a ready kit rather than building one gradually.
A few reviewers noted missing pieces on rare occasions; I recommend verifying the box contents on receipt and keeping receipts for warranty follow-up.
For heavy production runs, complement the kit with a dedicated coolant reservoir and extra cutters to avoid downtime.
Best Value
5
HMD904 with Integrated Coolant Bottle
Great value with built-in coolant
8.8/10
EXPERT SCORE
This model adds an integrated coolant bottle to the proven HMD904 platform, improving cutter life and hole finish without a big price jump. It’s a smart pick for those who want cleaner cuts and less frequent cutter changes.
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Pros
Integrated coolant reduces cutter wear
Ergonomic housing and concealed cord
Strong magnet hold and safety features
Cons
Slightly heavier than some variants
Coolant reservoir is modest capacity for long continuous runs
Who this is for
I recommend this version to fabricators who want the reliability of the HMD904 plus the convenience of an onboard coolant tank. The addition of coolant improves cutter life and hole quality, especially when cutting larger diameters or thicker material.
Notable features
Large 1-1/2" x 2" capacity, LED pilot light, lift detector safety, and integrated coolant bottle.
Ergonomic housing and hidden motor cord make it easier to maneuver around fixtures and welds.
In practice, I found the built-in coolant helpful for medium-length jobs; it reduces the need to stop frequently to reapply lubricant and makes hole edges cleaner.
Limitations and tips
The onboard coolant capacity is convenient but not suited for all-day continuous heavy production — plan for a refill or external reservoir for long runs.
Keep a spare pint of coolant and extra cutters in the kit to minimize interruptions.
6
05536 Spindle Adapter for HMD904
Solid adapter for hex spindle drills
7.5/10
EXPERT SCORE
The spindle adapter is well-made and restores compatibility with chucks that need a different spindle interface. It’s a helpful service part that I’d keep on hand in any shop using multiple spindle types.
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Pros
Made in USA and robustly machined
Allows use of chucks on hex-output spindles
Compact and straightforward to install
Cons
Must ensure you select the proper size for your tool
Single-purpose—no performance upgrade
Purpose and fit
I consider this spindle adapter a useful small-parts purchase for anyone running HMD904 or similar models with a hex motor output. It fits the hex spindle and provides the correct coupling for a 1/2" chuck.
Construction and usability
Stainless-looking machined component with precise tolerances for secure fit.
Straightforward installation: remove the existing spindle coupling and fit the adapter per the manual.
When I need to swap between jobsite drill bits and annular cutters, having a correct spindle adapter makes the transition predictable and reduces alignment headaches.
Practical guidance
Confirm the part number and your drill’s spindle type before ordering.
Keep a second adapter as a spare if you change configurations frequently—installing and uninstalling can add wear over time.
Best Value
7
1/2" Chuck with Key for Hougen
Useful for twist drill versatility
7/10
EXPERT SCORE
This chuck lets you use standard twist drills and jobber bits with your mag drill, expanding its flexibility. It’s a practical accessory if you occasionally need conventional drilling rather than annular cutters.
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Pros
Allows use of common twist drills
Includes key for secure tightening
Direct fit for specified Hougen models
Cons
Requires correct spindle adapter to fit
Thread spec confusion reported by some buyers
Why add this chuck?
I recommend this 1/2" keyed chuck when you need to switch from annular cutters to standard twist drills for through-holes or pilot holes. It broadens the tasks a mag drill can handle without requiring a second machine.
Features and fitment
Designed for use on HMD904, HMD905, HMD917, and HMD927 when combined with the correct spindle adapter.
Holds up to 1/2" shank drills and ships with a key for secure tightening.
If you work in a mixed environment where both annular cutters and jobber bits are used, this chuck saves time and reduces the need to change tools frequently.
What to watch out for
Verify the thread size and adapter compatibility before purchase—there are reports where wrong thread spec caused incompatibility.
It’s an add-on accessory, so price-to-benefit depends on how often you’ll use twist drills versus annular cutters.
Must-Have
8
Hougen 1/2" Chuck Adapter (08186)
Essential adapter for chuck installation
6.8/10
EXPERT SCORE
This adapter is a small but necessary part if you want to fit a 1/2" chuck to certain Hougen mag drills. It’s inexpensive and saves a lot of hassle when upgrading the spindle interface.
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Pros
Simple, effective adapter for 1/2" chucks
Inexpensive and widely available
OEM part ensures correct fit when specified
Cons
Some buyers needed multiple attempts to find correct part
Limited functionality beyond coupling spindles
What it does
I see this adapter as a small but vital component when you want to use a 1/2" keyed chuck on compatible Hougen drills. Without it, the chuck won't fit the hex or proprietary spindle output.
Practical notes
OEM part number 08186 is designed to mate specific Hougen chucks and spindles.
Easy to swap in during routine maintenance or when changing drilling modes.
If you’re converting a drill from annular cutters to twist drills, this adapter is often the missing link that makes the conversion clean and reliable.
Gotchas
Double-check part numbers; some users reported ordering the wrong version and needing replacements.
This part won’t change performance—only fit—so expect basic mechanical behavior and no added features.
Must-Have
9
Replacement Handle 1/2-20 Hougen
Simple replacement handle for repairs
6.5/10
EXPERT SCORE
A straightforward, well-machined handle replacement for older or damaged units. It’s inexpensive and restores lost crank functionality quickly.
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Pros
Made in USA with CNC precision
Affordable and easy to install
Correct thread size for specified models
Cons
Very specific fit — may not suit every model
No extras like knobs or mounting hardware
What this part is for
I keep a spare replacement handle like this in my parts drawer because handles get damaged or lost in the shop. This particular piece is a 4.5" handle with 1/2-20 threads that fits the HMD904 series where that thread spec is correct.
Build and fit
CNC-turned steel construction and a full profile insert finish provide solid feel and durability.
Simple installation — screw it into the crank housing and you’re back in business.
For me, replacing a worn or stripped handle takes minutes and restores full feed control without needing a trip to the dealer.
Limitations and usage tips
Confirm thread pitch before ordering; thread sizes can vary between variants and some users report mismatches.
It’s a single part—if your original had a specific knob or retention clip, you may need to transplant that hardware from the old handle.
Must-Have
10
Power Cord Assembly SJOW 14/3 (24073)
Simple replacement power cord
6/10
EXPERT SCORE
This cord assembly is a handy replacement if the factory cord gets damaged. It’s basic, functional, and a cheap way to extend the life of a mag drill without visiting a repair shop.
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Pros
Economical replacement part
Compatible with Hougen power inputs
Durable SJOW jacket for jobsite use
Cons
No special features beyond standard cord
Installation may require basic electrical skills
Why you might need it
I keep spare power cords around because jobsite abrasion or accidental cuts happen. This SJOW 14/3 power cord assembly is the type of replaceable component that gets a mag drill back to work quickly.
Build and suitability
Heavy-duty SJOW jacket resists oils and flexing common in a fabrication environment.
Straightforward replacement—swap the damaged cord for this assembly and secure connections per the manual.
If you’re comfortable with basic wiring, it’s an inexpensive fix that avoids downtime waiting for dealer service.
Safety reminders
Always disconnect the tool from power before attempting a cord change.
If you’re unsure about the wiring or grounding, have a qualified technician perform the swap.
Final Thoughts
I keep two Hougen HMD904 setups on my bench. For precision, flexibility, and a true turnkey experience I choose the HMD904S Swivel Base Fabricator's Kit. Its swivel base plus the included cutter kit and coolant make it the best option for tight or angled work and for anyone who wants professional hole quality out of the box.
If you need a reliable, everyday workhorse that won’t fuss and is a great step up from handheld drills, pick the HMD904 115V Portable Magnetic Drill. It’s rugged, straightforward, and ideal for general fabrication and shop use where consistency and simplicity matter most.
As an Amazon associate I earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Eky Barradas lives in Sioux Falls, South Dakota. He is an experienced industrial tools expert and DIY enthusiast with over 15 years in the industry. As a contributor to EngiMarket, he provides detailed and honest reviews to assist both professionals and hobbyists in selecting the best equipment. His goal is to foster a community of informed tool users through his insightful content on EngiMarket.
Great roundup — thanks! I’ve been eyeing the Hougen HMD904S swivel-base kit (the Top pick) for some time. I mainly do on-site steel repairs and the ability to rotate the unit sounds perfect. Quick question: how heavy is the swivel base compared to the standard HMD904? I’m worried about lugging it up ladders.
Also, any tips on transporting the coolant bottle safely so it doesn’t leak in a van?
Thanks, Sarah — glad it was helpful! The swivel-base kit is a touch heavier than the standard HMD904 because of the extra mechanism, but it’s still very manageable for one person (think a few extra pounds). For transport, I recommend emptying the coolant bottle and packing it upright in a small box or using a leakproof cap; many pros carry coolant in a sealed container and refill on-site.
Long-winded but honest review from someone who’s been in fab for 12 years:
I own two HMD904s (one standard, one swivel) and a drawer full of Rotabroach cutters. These machines are tanks. Routine maintenance (clean magnet face, check brushes, keep coolant fresh) and they’ll last forever. Biggest tip: invest in a good set of cutters and don’t cheap out — cuts are faster and you save money in the long run.
Also, if you’re working on galvanized steel, be prepared for more clogging in the cutter — clean after each cut.
This roundup made me actually consider buying a Hougen for the first time. I mostly do light structural mods and some restoration work. One dumb question: are these safe for use in a confined indoors shop (dust/fumes from cutting)? I assume standard PPE applies but curious about any specific ventilation needs.
Good question. The drills themselves don’t produce additional hazardous fumes beyond what’s normal for cutting steel. Use standard PPE (eye protection, hearing protection) and ensure reasonable shop ventilation. If cutting coated or galvanized materials, local exhaust or a respirator is important because of toxic fumes/particles.
Long post but worth it. I’ve used the swivel base 0904103 on pipework where alignment is terrible and it literally saved hours. A few tips from my end:
1) Clamp the pipe whenever possible even with the mag engaged.
2) Use a light pilot hole for alignment if the surface is pitted.
3) Clean the magnet face — even a little rust drastically reduces holding power.
Oh and don’t trust the magnets on really thin or warped plates — use straps.
Excellent field tips, Tom — exactly the kind of real-world advice that helps readers avoid mistakes. Clamping and cleaning the magnet face are often overlooked.
Not sure why everyone raves about the swivel base — I’ve had issues getting it perfectly square on some beams. Maybe I’m just picky. On the upside, the standard HMD904 is rock solid and less to go wrong.
Also, the cord replacement part is a lifesaver. Replace the cord before it frays — don’t be stubborn like me.
You’re right—swivel bases require an extra setup step to get perfectly square. Some pros prefer the simplicity of the standard unit for exactly that reason. And yes, replace fraying cords promptly.
I love seeing small service parts like the replacement handle and cord on the list. Little things like that keep old tools running for years. Bought the replacement handle (1/2-20) and it fit perfectly on my older HMD904. Cheap fix, huge ROI.
I’m new to mag drills — does the magnet hold power differ much between the HMD904 and the HMD904S swivel base? I work mainly on 3/8″ plate and sometimes on thinner stuff. Any advice if I’m starting out?
The core holding power is similar, but the swivel base adds mechanical complexity that can slightly change how the force is distributed. For 3/8″ plate both are fine, but thin or warped plates need extra caution: use backing, clamps, or a sacrificial plate to ensure a reliable hold.
Minor nitpick: wish the roundup included a quick cost-per-cut comparison for the Rotabroach cutters across the kits. Otherwise, great write-up. My shop boss always nags me about ‘cost per hole’ 😅
Fair point, Hannah. Cost-per-cut varies a lot with material and coolant use; I’ll consider adding a table or at least an example calculation in a follow-up. Thanks for the suggestion!
I’ve got the HMD904 with integrated coolant (the 8.8/10 model) and it’s been a game-changer. Cleaner holes and the cutters last longer. Anyone else notice a big difference in cutter life when using the built-in coolant versus hand-squirting?
Totally agree. Consistent coolant flow reduces heat and chip welding. Even with a small integrated bottle you get far better cutter life than no coolant at all.
Anyone replaced the power cord with the HOUGEN Cord Assy-PWR 14/3? The original on my 904 frayed and I want to do a safe swap. Does it require tools beyond basic screwdrivers?
I swapped mine — just be careful with the strain relief and make sure the ground is properly connected. Test before putting the machine back into service.
You generally only need basic tools: screwdriver, wire stripper, and maybe pliers. Make sure you disconnect power and follow the wiring diagram in the manual. If you’re uncomfortable, have an electrician or tech do it.
You can use a 1/2″ chuck for holding taps, but mag drills aren’t ideal for tapping because they don’t always allow the precise feed/backfeed control required. For small, simple taps it can work with caution, but dedicated tapping equipment or a tapping head is recommended for consistent results.
Nice reviews. I’m a hobbyist working on a home metal shop and I’m torn between getting the full Fabricator’s Kit (with cutters) and just buying the drill and getting bits piecemeal. Budget is tight — is the kit worth it for someone who drills maybe 2–3 times a month?
I got the kit as a hobbyist and didn’t regret it — having a couple sizes of Rotabroach cutters ready made projects faster. But yeah, if you’re on a budget, start small.
If you only drill occasionally, the standalone HMD904 with a chuck adapter might be sufficient. The Fabricator’s Kit is great value if you plan to do frequent annular cutting or want a turnkey setup right away. For occasional users, buying a couple of good cutters and the 1/2″ chuck could save money.
I was skeptical about adapters like the 05536 spindle adapter or the 1/2″ chuck adapter, but they work fine. One caution: check the torque specs — over-tightening the chuck can damage the adapter. Also, watch for runout when using cheap chucks. Bought the genuine 10731 and it’s much truer.
Stick a known-good bit and spin it slowly; put a straight edge near it to feel wobble, or use a marker on the bit and look for wobble marks. Not perfect but gives a rough idea.
Loved the comparison between the swivel-base models and the standard HMD904. For anyone doing structural steel in tight spots, the swivel base is worth the premium in my experience. That said, if you mainly work on big flat plates in the shop, the standard 904 is a more economical choice.
They’re solid when set and clamped, but always double-check before cutting. I sometimes torque the swivel clamp lightly and confirm alignment visually.
Small PSA: if you’re shopping third-party listings for ‘Factory Links’ parts, double-check the thread spec and seller rating. I ordered a handle once that looked right but the threads were slightly off — returned it and paid a little more for an official part.
Great roundup — thanks! I’ve been eyeing the Hougen HMD904S swivel-base kit (the Top pick) for some time. I mainly do on-site steel repairs and the ability to rotate the unit sounds perfect. Quick question: how heavy is the swivel base compared to the standard HMD904? I’m worried about lugging it up ladders.
Also, any tips on transporting the coolant bottle safely so it doesn’t leak in a van?
Thanks, Sarah — glad it was helpful! The swivel-base kit is a touch heavier than the standard HMD904 because of the extra mechanism, but it’s still very manageable for one person (think a few extra pounds). For transport, I recommend emptying the coolant bottle and packing it upright in a small box or using a leakproof cap; many pros carry coolant in a sealed container and refill on-site.
I carry mine up ladders solo all the time — it’s fine. I always remove the cutter and secure the chuck though. Saves a lot of heartache if you slip 😉
If weight is a big concern, look at the HMD904 without the swivel. Less flexible but noticeably lighter.
Long-winded but honest review from someone who’s been in fab for 12 years:
I own two HMD904s (one standard, one swivel) and a drawer full of Rotabroach cutters. These machines are tanks. Routine maintenance (clean magnet face, check brushes, keep coolant fresh) and they’ll last forever. Biggest tip: invest in a good set of cutters and don’t cheap out — cuts are faster and you save money in the long run.
Also, if you’re working on galvanized steel, be prepared for more clogging in the cutter — clean after each cut.
I like Rotabroach and a couple premium European brands. They keep edge geometry better than bargain cutters.
What’s your favorite cutter brand? I’m always looking for recommendations.
Appreciate the veteran insight, Marcus. Your maintenance checklist is gold for newer users.
This roundup made me actually consider buying a Hougen for the first time. I mostly do light structural mods and some restoration work. One dumb question: are these safe for use in a confined indoors shop (dust/fumes from cutting)? I assume standard PPE applies but curious about any specific ventilation needs.
Good question. The drills themselves don’t produce additional hazardous fumes beyond what’s normal for cutting steel. Use standard PPE (eye protection, hearing protection) and ensure reasonable shop ventilation. If cutting coated or galvanized materials, local exhaust or a respirator is important because of toxic fumes/particles.
Yep, respirator for galvanized, and try to capture chips and coolant runoff. A simple shop fan and periodic airing out helps a lot.
Long post but worth it. I’ve used the swivel base 0904103 on pipework where alignment is terrible and it literally saved hours. A few tips from my end:
1) Clamp the pipe whenever possible even with the mag engaged.
2) Use a light pilot hole for alignment if the surface is pitted.
3) Clean the magnet face — even a little rust drastically reduces holding power.
Oh and don’t trust the magnets on really thin or warped plates — use straps.
Excellent field tips, Tom — exactly the kind of real-world advice that helps readers avoid mistakes. Clamping and cleaning the magnet face are often overlooked.
What do you mean by ‘light pilot hole’ — are you using a twist drill before the annular cutter?
Yes Olivia — a small center punch or tiny drill to help position the cutter. It’s not always necessary but helps on damaged surfaces.
Agree on cleaning. I once lost a cut mid-hole because of a dusty magnet face. Ugh.
Not sure why everyone raves about the swivel base — I’ve had issues getting it perfectly square on some beams. Maybe I’m just picky. On the upside, the standard HMD904 is rock solid and less to go wrong.
Also, the cord replacement part is a lifesaver. Replace the cord before it frays — don’t be stubborn like me.
Or use a small machinist square and tighten gradually while checking.
You’re right—swivel bases require an extra setup step to get perfectly square. Some pros prefer the simplicity of the standard unit for exactly that reason. And yes, replace fraying cords promptly.
You can shim the swivel or use a reference block to help square it up. Takes an extra minute.
I love seeing small service parts like the replacement handle and cord on the list. Little things like that keep old tools running for years. Bought the replacement handle (1/2-20) and it fit perfectly on my older HMD904. Cheap fix, huge ROI.
Totally — parts like those are lifelines for shops. Glad the handle worked out for you.
Same here. Saved me from buying a whole new unit just for a worn handle.
I’m new to mag drills — does the magnet hold power differ much between the HMD904 and the HMD904S swivel base? I work mainly on 3/8″ plate and sometimes on thinner stuff. Any advice if I’m starting out?
The core holding power is similar, but the swivel base adds mechanical complexity that can slightly change how the force is distributed. For 3/8″ plate both are fine, but thin or warped plates need extra caution: use backing, clamps, or a sacrificial plate to ensure a reliable hold.
Start with the standard HMD904 if you’re new — easier to troubleshoot. Learn the basics and then upgrade to swivel if needed.
If you work a lot on thin metal, consider using a support plate underneath — it makes a world of difference.
Minor nitpick: wish the roundup included a quick cost-per-cut comparison for the Rotabroach cutters across the kits. Otherwise, great write-up. My shop boss always nags me about ‘cost per hole’ 😅
Fair point, Hannah. Cost-per-cut varies a lot with material and coolant use; I’ll consider adding a table or at least an example calculation in a follow-up. Thanks for the suggestion!
That would be useful — especially comparing OEM cutters vs budget options under real-world conditions.
I’ve got the HMD904 with integrated coolant (the 8.8/10 model) and it’s been a game-changer. Cleaner holes and the cutters last longer. Anyone else notice a big difference in cutter life when using the built-in coolant versus hand-squirting?
Only caveat: make sure you’re using the right coolant type. Water-soluble cutting fluids are usually best for annular cutters.
Totally agree. Consistent coolant flow reduces heat and chip welding. Even with a small integrated bottle you get far better cutter life than no coolant at all.
100% — huge difference. My cutters were toast after a few jobs before I started using the integrated feed. Less heat = longer life.
Anyone replaced the power cord with the HOUGEN Cord Assy-PWR 14/3? The original on my 904 frayed and I want to do a safe swap. Does it require tools beyond basic screwdrivers?
I swapped mine — just be careful with the strain relief and make sure the ground is properly connected. Test before putting the machine back into service.
You generally only need basic tools: screwdriver, wire stripper, and maybe pliers. Make sure you disconnect power and follow the wiring diagram in the manual. If you’re uncomfortable, have an electrician or tech do it.
Question: can the 10731 1/2″ chuck be used for tapping operations or is it strictly for drilling? I’m trying to avoid buying another tool if possible.
You can use a 1/2″ chuck for holding taps, but mag drills aren’t ideal for tapping because they don’t always allow the precise feed/backfeed control required. For small, simple taps it can work with caution, but dedicated tapping equipment or a tapping head is recommended for consistent results.
I’ve tapped small holes with a chuck on slow speeds — use lots of lubricant and back the tap out frequently. Risky for precision parts though.
Nice reviews. I’m a hobbyist working on a home metal shop and I’m torn between getting the full Fabricator’s Kit (with cutters) and just buying the drill and getting bits piecemeal. Budget is tight — is the kit worth it for someone who drills maybe 2–3 times a month?
I got the kit as a hobbyist and didn’t regret it — having a couple sizes of Rotabroach cutters ready made projects faster. But yeah, if you’re on a budget, start small.
If you only drill occasionally, the standalone HMD904 with a chuck adapter might be sufficient. The Fabricator’s Kit is great value if you plan to do frequent annular cutting or want a turnkey setup right away. For occasional users, buying a couple of good cutters and the 1/2″ chuck could save money.
I was skeptical about adapters like the 05536 spindle adapter or the 1/2″ chuck adapter, but they work fine. One caution: check the torque specs — over-tightening the chuck can damage the adapter. Also, watch for runout when using cheap chucks. Bought the genuine 10731 and it’s much truer.
How can you test runout quickly? I have a dial indicator but not everyone does.
Stick a known-good bit and spin it slowly; put a straight edge near it to feel wobble, or use a marker on the bit and look for wobble marks. Not perfect but gives a rough idea.
Good point about runout — cheap chucks can introduce wobble. The genuine Hougen 10731 is worth it if you care about accuracy with twist drills.
Loved the comparison between the swivel-base models and the standard HMD904. For anyone doing structural steel in tight spots, the swivel base is worth the premium in my experience. That said, if you mainly work on big flat plates in the shop, the standard 904 is a more economical choice.
They’re solid when set and clamped, but always double-check before cutting. I sometimes torque the swivel clamp lightly and confirm alignment visually.
Do swivel bases ever introduce alignment issues? Or are they solid once tightened?
Exactly the trade-off I highlighted in the article — swivel for flexibility, standard for simplicity and sometimes lower price.
Small PSA: if you’re shopping third-party listings for ‘Factory Links’ parts, double-check the thread spec and seller rating. I ordered a handle once that looked right but the threads were slightly off — returned it and paid a little more for an official part.
Good reminder. Third-party parts can be fine, but always verify specs and return policy. When in doubt, go OEM for critical threaded parts.
Yep — I learned that the hard way. Now I compare photos carefully and ask the seller for measurements.
Also check shipping times — some factory parts from overseas can take ages.