Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Will it fit 2-1/2 in drillpress
Document: (1.6cm) shank chisels (not included)* Comes with 4 chisels shank sizes of 3/16 in, 9/32in, 3/8in, 1/2 in. * Replacement chisels sold separately* Also includes installation hardware, instructions and plastic carrying case
The Attachment appears to be solidly built and was easily assembled on my Ryobi DP101 drill press just from the pictures. It produced clean mortises from the first time I used it.The Operation Manual was accurate and clearly written.Suggestions - 1 - The attachment is supposed to be removable. A knob or lever would be preferable to the hex nut supplied to tighten the chisel holder on the quill.2 - Metal split ring bushings instead of the plastic ones supplied.
I was never able to use the tool because it was not fit to my press drill (SKIL 3320-01-RT 3.2 Amp 10-Inch Drill Press). I thought it would be unfair to give one of two stars without really experiencing it. However, I went through all troubles to try and return. The seller's return service was not bad. Responsive and respectable although I had to pay a few extra tens dollars to return the heavy tool.
It might fit to other press drill so I will leave the product review for them.
The parts are heavy and sturdy. However, the mortising chisel is of very poor quality. The chisel should cut a square hold. Instead it cuts a lopsided uneven length sides polygon shaped hole. The drill press required excessive pressure to get the chisel to press into the wood. I only tried on pine. Others report that it works a lot better in harder wood. I suppose if one buys a good mortising chisel, this might work . The rest of the package appears to be built solid enough.
The mortising attachment as a whole works well with my General Industrial drill press. However, the mortising chisels are poorly designed and cannot handle hard woods like sugar maple. The mortising chisels have what appear to be a "dome" design (instead of the traditional "cone" design) which compresses the wood and does not push it toward the auger bit when drilling. The points are soft and actually bend inward when trying to penetrate hard woods.
The cast part that sits atop the fence overhangs the fence. ...
Some minor quirks.. it makes you work to get an accurate mortise but it does its job well once it's set up. Given that it is half the price of the competition I would recommend this to anyone making mortises on a somewhat limited basis (e.g. smaller projects) but it is too clumsy for a commercial operation. As a home user (I am rebuilding my kitchen and do occasional other woodwork, it is perfect for my needs.
Received from Northern tool in good shape. Instructions were OK.  Fitment to an old bench drill press went smoothly. All in All a good buy.
My bits came in cardboard boxes squeezed in between the other parts in the case.In summary, a good hobbyist tool which I would recommend to other woodworkers.Edward Beckles
Answer: yes