Square Hole Drill Bit Adapter for Drill Machine Accessory, Easy Installation and Disassembly, Mortising Attachment for Drill Press, Woodworking Mortise Machine, Tenon Drill Bits Fixing Bracket.

works great

I used this mortising setup on a drill press. But based on my experience I can’t imagine how it would work in a hand drill unless you’re mortising balsa wood. I found it takes extreme pressure to push the chisel thru fairly hard pine, and you have to clamp down the workpiece with 3or 4 clamps to keep it from riding up when you retract the chisel bit.Overall it got the job done but took me hours to set it up and get it working right, so I left off one star.

Does not work as advertised. Directions are not helpful. I don’t give many bad reviews so use this review.

After getting it set up I was able to make very decent motis and tendon joints. Great for a hobbiest woodworker on a budget.

On my Skill drill press, Anything higher than 1/2" it will not, I repeat, It will not drill anything higher than !/2", If you do it, will damage your drill press. Mike Wallace

Tool did not fit drill press. Unusable

Had to figure out how to install it. But it works just like it is supposed to.

Product worked great AFTER I found additional bolts that had slipped out of the box during shipping. Sort of sloppy way to treat a good product.