Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Will they work fit into a Jet JBM-5 mortising machine?
Document: These work absolutly fine. Pay attention to shaft diameter. These WILL NOT fit into a Jet mortise attachment for your drill press(originally purchased for). As luck would have it, I found a dedicated mortise machine at my local Ollies(a discount store), and they fit exactly. Not sure if they will stand the test of time but so far they have worked very well(even the harder materials such as white & red oak).
it doesnt fit the delta machine i bought. i wish they did, they look real sharp. thats why i gave em 5 stars.
For the price, these are nice bits. They fit my Delta mortising machine and as a novice with the machine, they seem to do a good job! They were delivered as promised and in good condition.
Very pleasantly surprised at the value of these chisels. They are better quality than a different brand that I originally purchased with the mortising machine. Be careful, though, some machines use 5/8ths shank bits. These are 3/4&#34;.
This product was tagged on to the Delta Mortising Attachment for the Delta 14-040 Drill Press as having the ability to be used in the attachement, WRONG. The shank is 3/4" and the Delta Mortising Attachment takes a 5/8" shank. Not good!
This set has a 3/4 inch shoulder on the square bit and does not fit the Delta Mortising Attachments.The 1/4 inch bit was slightly bent and it is fragile enough already so I sent the whole set back.I am going to order the Delta Set. Might not be any better quality but they will fit.
This is obviously an inexpensive set of chisels. They were good for me in learning to use my new mortising machine. I had to tune them up significantly to make them usable, and if you're doing very fine woodwork these probably aren't what you're looking for but they get the job done.
I was worried when I ordered these that in compared to the regular priced bits these cheap bits would be dull and work poorly. To my surprise they worked great. They squeal on occasion, but besides that they cut square holes just fine. They leave a not so pretty bottom, but nothing a quick chisel could not fix.
Woodstock D2845-1/4-to-1/2-Inch Mortising Chisel Set, 4-PieceIt makes square holes and can be used to make rectangular channels in wood.I don't think any further explanation is required.
I am a novice (but enthusiastic) wood worker. I have a very high quality drill press and thought these would be great. Shame on me for not know that they require some sort of a mortising attachment for the drill press to be used. This was an expensive lesson for me.
Answer: yes