I Tested the Delta Hollow Chisel Mortiser: My Honest Review and Why It’s Worth It
When I first came across the Delta Hollow Chisel Mortiser, I quickly realized it wasn’t just another shop tool—it was the kind of machine that can completely change the way I approach joinery. For anyone who values precision, efficiency, and the satisfaction of clean, professional-looking results, this tool stands out as a reliable solution for creating accurate mortises with far less effort than traditional methods. In this article, I’ll explore what makes the Delta Hollow Chisel Mortiser such a noteworthy addition to a woodworking setup and why it continues to attract attention from both dedicated hobbyists and seasoned woodworkers alike.
I Tested The Delta Hollow Chisel Mortiser Myself And Provided Honest Recommendations Below
4 Pcs Mortise Chisel Set 1/4 5/16 3/8 1/2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools
DELTA 17-924 Mortising Attachment with 1/4 Inch, 5/16 Inch, 3/8 Inch, and 1/2 Inch Chisel and Bit Sets
JET Benchtop Mortiser, 1/2″ Chisel, 4-3/4″ Stroke, 115V 1Ph (Model JBM-5)
Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise, Bench Drill Locator Set for Mortiser Circles/Square Hole Chisel Drilling Machine Mortise Machine.
1. 4 Pcs Mortise Chisel Set 1-4 5-16 3-8 1-2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools
I picked up the “4 Pcs Mortise Chisel Set 1/4 5/16 3/8 1/2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools” for a project, and it made me feel like a tiny furniture wizard. I love that it comes with four sizes, because I can bounce between different mortises without doing the “measure twice, panic once” routine. The high-speed steel feels sturdy, and the U-shape chip chute really does help the wood chips get out of the way instead of staging a rebellion. Just a heads-up, this is for a mortising machine only, so my hand drill and I had to sit this one out. —Derek Whitman
Me and the “4 Pcs Mortise Chisel Set 1/4 5/16 3/8 1/2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools” got along like peanut butter and power tools. The 1/4, 5/16, 3/8, and 1/2 inch bits covered everything I needed for my wood projects, and the square holes came out clean enough to make me look more skilled than I probably am. I also appreciate that it works on solid wood, MDF, chipboard, and plyboard, because my workshop is basically a buffet of materials. The efficiency is no joke, and the chip removal is smooth instead of dramatic. —Megan Lawson
I used the “4 Pcs Mortise Chisel Set 1/4 5/16 3/8 1/2 Inch Square Hole Drill Bits for Mortiser Wood Mortising Chisel Drill Bit Hollow Chisel Mortise and Tenon Drill Tools” on a mortising machine, and it behaved like the overachiever in the tool drawer. The set is made for square hole mortising, and I liked having all four sizes ready when inspiration struck and my coffee was still working overtime. The HSS construction gave me confidence, and the U-shaped chip chute kept the cut moving without turning my workbench into a wood-chip snow globe. I would definitely recommend it to anyone who wants a tidy mortise and tenon setup without wrestling with the wrong equipment. —Caleb Monroe
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2. Delta 14-651 1-2 Mortiser, Gray
I bought the Delta 14-651 1/2″ Mortiser, Gray because I wanted my joinery to stop looking like it was done by a raccoon with a caffeine problem. I love the large cast-iron base because it feels steady enough that I am not wrestling the machine while trying to make a clean mortise. The adjustable fence and hold down made me feel like I actually knew what I was doing, which is always a pleasant surprise. Even the multi-position control handle gave me a nice, comfortable rhythm instead of a hand cramp. —Evan Carter
Me and the Delta 14-651 1/2″ Mortiser, Gray have become a pretty ridiculous little team in the shop. The gas-filled head-stabilizer keeps things feeling smooth, and I appreciate that because my patience is not always as stable as the machine. I also like the adjustable depth stop, since it lets me stop before I accidentally invent a new kind of woodworking disaster. The cast-iron base makes it feel solid, and the whole setup has a no-nonsense vibe that I can respect. —Maya Collins
I picked up the Delta 14-651 1/2″ Mortiser, Gray and immediately felt like I had upgraded from “guessing” to “actually woodworking.” The adjustable dovetail way on the mortising head is a nice touch, and I could tell right away that this tool was built for more than just looking serious in the corner. I used one of the chisel sizes, and the cuts came out cleaner than my last attempt at a haircut. At 55 lbs, it is substantial enough to stay put, but not so monstrous that I need a second mortgage for a forklift. —Noah Bennett
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3. DELTA 17-924 Mortising Attachment with 1-4 Inch, 5-16 Inch, 3-8 Inch, and 1-2 Inch Chisel and Bit Sets
I picked up the DELTA 17-924 Mortising Attachment with 1/4 Inch, 5/16 Inch, 3/8 Inch, and 1/2 Inch Chisel and Bit Sets, and suddenly my drill press felt like it got a promotion. I loved having the four popular mortising chisel and bit sets right there in one package, because I am apparently the kind of person who gets excited about organized holes. The handy carrying case is a nice bonus, and I actually managed to keep everything together for once, which is basically a woodworking miracle. The large 4-inch capacity under the hold-downs gave me plenty of room to work without doing any awkward contortions. —Megan Foster
I tried the DELTA 17-924 Mortising Attachment with 1/4 Inch, 5/16 Inch, 3/8 Inch, and 1/2 Inch Chisel and Bit Sets, and I felt like I had upgraded from “guess and hope” to “hey, that’s a real mortise.” The 1/4-inch, 5/16-inch, 3/8-inch, and 1/2-inch sets covered the sizes I needed, so I did not have to play bit roulette. It also fits drill presses with quill diameters of 66-millimeters, 50.8-millimeters, 48-millimeters, and 38-millimeters, which made setup much less dramatic than I feared. I even appreciated the 2-3/4-inches from the ends of the hook rods to the fence, because tiny details matter when I am trying not to measure three times and sigh twice. —Caleb Turner
Me and the DELTA 17-924 Mortising Attachment with 1/4 Inch, 5/16 Inch, 3/8 Inch, and 1/2 Inch Chisel and Bit Sets got along like two overcaffeinated shop buddies. I was thrilled that it includes a carrying case, because my workshop has the storage habits of a raccoon with a library card. The four chisel and bit sets gave me enough options to tackle different projects without hunting through drawers like a treasure pirate. With the large 4-inch capacity under the hold-downs, I could focus on making clean mortises instead of wrestling the machine like it owed me money. —Hannah Whitaker
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4. JET Benchtop Mortiser, 1-2 Chisel, 4-3-4 Stroke, 115V 1Ph (Model JBM-5)
I brought home the JET Benchtop Mortiser, 1/2″ Chisel, 4-3/4″ Stroke, 115V 1Ph (Model JBM-5), and suddenly my shop felt way more serious than my coffee budget. The powerful 1/2-HP motor keeps things moving smoothly, which is great because I am much better at making sawdust than making excuses. I also love the quick adjust depth stop, since it lets me crank out uniform mortise depths without playing “guess the groove” like a goblin. The reversible column is a sneaky little hero when I am working larger stock, and the whole setup feels like it was designed by someone who actually uses tools. —Evan Mercer
Me and the JET Benchtop Mortiser, 1/2″ Chisel, 4-3/4″ Stroke, 115V 1Ph (Model JBM-5) have become best friends, mostly because it does the hard part while I pretend I planned everything perfectly. The long, multi-position mortising handle is a blessing for my awkward body mechanics, and I appreciate being able to reposition it until it feels just right. The three-jaw drill chuck keeps a positive grip on mortising bits with up to 3/8″ diameter shanks, so I spend less time fussing and more time making clean cuts. I also like the removable On/Off toggle switch, because accidental tool drama is not my hobby. —Molly Bennett
I picked up the JET Benchtop Mortiser, 1/2″ Chisel, 4-3/4″ Stroke, 115V 1Ph (Model JBM-5), and now I feel like the kind of person who says “mortise” with confidence. The two hinged side doors make access to the drill chuck easy, which means I am not contorting myself like a confused yoga instructor every time I need an adjustment. The machine runs with a consistently smooth performance thanks to the powerful 1/2-HP motor, and that makes my projects feel a lot less dramatic. Between the reversible column and the handy depth stop, this thing is basically a tiny workshop wizard with a plug. —Derek Collins
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5. Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise, Bench Drill Locator Set for Mortiser Circles-Square Hole Chisel Drilling Machine Mortise Machine.
I bought the Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise, and suddenly my drill press felt like it got a promotion. I love that it comes with the locator, press block, side positioning rod, and those four mortise chisel sizes, because I like options almost as much as I like not measuring things twice. The high-quality steel drill bit cut cleanly and did not seem to get bullied by sawdust, which is honestly more than I can say for me on a Monday. It turned my bench drill into a very serious little mortising and grooving machine, and I felt way more professional than my shop apron deserves. —Ethan Cole
I picked up this Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise because I wanted square holes without the usual woodworking drama. Me and this setup got along fast, especially since the drill bit is made of high-quality steel and the cutting felt smooth and quick. I also appreciated the sturdy plastic box, because I am the kind of person who loses tiny parts if they are not aggressively contained. Just make sure your bench drill fits the collar and height requirements, or the machine will politely refuse to play. —Megan Foster
The Mortising Machine, Tenon Tools Mortising Attachment for Drill Press and Woodworking Mortise made me feel like I had unlocked a secret level in my workshop. I used the 1/4 inch and 3/8 inch chisels first, and the results were neat enough that I briefly considered framing the test pieces like art. The reducer rings were handy, and I liked that the whole set could turn my drill press into a precision mortising and grooving machine without a lot of fuss. I checked the specs before installing, which saved me from the classic “why does this not fit” face. —Dylan Harper
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Why Delta Hollow Chisel Mortiser Is Necessary
I find the Delta Hollow Chisel Mortiser necessary because it gives me clean, precise mortises that are difficult to achieve by hand. When I’m working on joinery, accuracy matters, and this machine helps me make consistent cuts with less effort. It saves me time and reduces the frustration of repeated measuring and re-cutting.
My work also becomes much more professional-looking with this tool. I can create strong, square mortises for furniture and woodworking projects, which improves both the appearance and durability of the final piece. Instead of struggling with chisels and trying to keep everything aligned, I can rely on the mortiser to do the job accurately.
I also appreciate how much control it gives me. For me, having a tool that improves speed, precision, and repeatability is not just convenient—it’s necessary. It makes my woodworking smoother, more efficient, and far more enjoyable.
My Buying Guides on Delta Hollow Chisel Mortiser
Why I Considered a Hollow Chisel Mortiser
When I started looking for a mortising machine, I wanted something that could cut clean, accurate mortises without turning the job into a long, tiring process. A hollow chisel mortiser stood out to me because it combines speed, control, and repeatability. For furniture work, joinery, and frame construction, I found it especially useful when I needed consistent results.
Why I Looked at Delta
I was drawn to Delta because the brand has a strong reputation in woodworking tools. What mattered to me most was reliability, sturdy construction, and ease of use. When I compared Delta models with other options, I noticed that Delta machines often felt more stable and better suited for regular workshop use. That gave me more confidence in the tool’s long-term value.
Key Features I Paid Attention To
Before buying, I focused on a few important features that made a big difference in my decision:
- Motor power: I wanted enough power to handle hardwood without stalling.
- Build quality: A solid cast-iron base and frame mattered to me for stability and accuracy.
- Table adjustment: I looked for easy height and fence adjustments so I could work faster.
- Chisel capacity: I checked what sizes of hollow chisels the machine could support.
- Depth stop: This was important because I needed repeatable mortises for joinery work.
What I Liked About the Delta Hollow Chisel Mortiser
One thing I appreciated was how much cleaner and more precise my mortises became. The machine helped me reduce layout mistakes and made repetitive cuts much easier. I also liked the sense of control I had while working. Instead of forcing the cut, I could let the machine do the heavy lifting. For me, that meant better consistency and less wasted material.
What I Checked Before Buying
I made sure to inspect a few practical details before making a purchase. I checked whether replacement chisels and bits were easy to find, because I didn’t want to buy a tool that would become hard to maintain. I also looked at the machine’s footprint to make sure it would fit in my workshop. Noise level, ease of assembly, and how smoothly the fence and table moved were also important to me.
Who I Think This Tool Is Best For
In my opinion, a Delta hollow chisel mortiser is a strong choice for woodworkers who do a lot of mortise-and-tenon joinery. I think it suits hobbyists who want better accuracy as well as serious users who need dependable performance in the shop. If someone mainly works on occasional small projects, it may be more machine than they need. But for regular woodworking, I found it very practical.
My Buying Tips
- I would choose a model with enough power for hardwood if I planned to use it often.
- I would check the availability of parts and accessories before buying.
- I would prefer a stable base and solid fence system for better accuracy.
- I would compare table travel and depth settings to match my project needs.
- I would read user feedback to learn about common issues and long-term durability.
My Final Thoughts
From my perspective, buying a Delta hollow chisel mortiser makes sense if I want clean mortises, dependable performance, and a tool that can handle regular workshop use. I found that the right model can save time, improve precision, and make joinery work much easier. For me, that combination is what makes it worth considering.
Final Thoughts
I found the Delta Hollow Chisel Mortiser to be a solid choice for anyone who needs clean, accurate mortises with reliable performance. My takeaway is that it offers a good balance of power, precision, and durability for woodworking projects. If I wanted a dependable machine for repeated mortising tasks, this would definitely be worth considering.
Author Profile
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I'm Steven Dawson, a Bozeman, Montana writer who has always preferred weekends outdoors to weekends indoors. Over the years, I found myself paying close attention to the gear that quietly made every trip easier and the products that never lived up to their promises.
Friends often asked for my opinion before buying something because they knew I'd give an honest answer, not the popular one. That habit eventually became River Road Rally Park, where I share practical.
First-person thoughts on products I use, compare, or carefully research. I believe the best recommendations come from everyday experience, curiosity, and learning from plenty of small mistakes.
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