Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Can I use this to sharpen countersink bits?
Document: I have had a Tormek sharpener for a number of years and use it to sharpen most of my tools in my woodshop. I had been using a Drill Doctor to sharpen my drill bits but had trouble getting a good cutting edge using it.I have had the Tormek sharpener now for about 4 months and have had great success with it. It has handled very bit I have tried and leaves an excellent cutting edge on the bit.The tool requires a bit of setup/fiddling.
The bit cut poorer than others i've sharpened with a 30 dollar attachment i got from sears.com that works with a standard bench grinder (2facet sharpening only). After a few holes i looked at the bit and could see discoloration from heat buildup around the center of the bit where the primary and secondary facets come together. I love the grinder i purchased, but this attachment is far less useful than I anticipated. Dont buy this contraptio to sharpen 4 facet bits like its advertised to.
Once you get the hang of it, the time required drops quickly.I use it a lot would highly recommend it to any wood or metal worker. Yes, it is expensive but it has been worth it compared to other sharpening alternatives.
This is the ultimate in drill bit sharpening. Best and quickest results with the bench grinder set up. Very easy to use.
My first attempt suffered from this but after reading the troubleshooting section of the manual I turned the bit a few degrees and reground it in just a couple of minutes to a perfect result because it was already close to the "Tormek" shape.The first grinding/ sharpening of small bits goes quickly while a 1/2 inch bit takes a while.
This attachment works and it is easy to master with the first drill bit. The instruction book is excellent with step by step pictures.After never being able to get good results with the drill doctor and an inexpensive jig that uses the side of a grinding wheel I decided to give this attachment a try and I was pleasantly surprised.The setup on the Tormek machine took just seconds.This attachment produces a uniquely ground tip with 4 flat facets that I have not seen on drill bits before.
For the most drill drill bits, it works well to create the 4-facet points. The initial re-grinding from conical to 4-facet points will take a while, but resharpening once the 4-facet points have been created is pretty quick and easy.The bit holder only grabs the solid portion of the drill shank unless the flutes happen to line up with the tangent points of the jaws closest to the grinding wheel.
I plan to make a holder using collets to improve on this.
As with all TORMEK accessories, this jig is quality built. It looks more complicated than it is. Very detailed instructions. Once you do one the rest are easy. I suggest doing a large 1/2&#34; bit first to be able to see results more clearly.
As I already mentioned because of alignment by sight the process is not fully automatic but once the big is clamped the tops and rails on the attachment virtually guarantee a symmetric result. Some judgment is required when approaching the final shape but because the bit holder is so easy to lift off the machine inspecting the work is very easy.
Answer: yes