General ToolsDrill Grinding Attachment #825 - Drill Accessories - For use with ANSI, OSHA, and UL

It works as described. No real directions to speak of but if you are the type of person that’s in the market for a drill bit sharpener than I suppose you could figure this out no problem. It took me about 1 1/2 beers to install it on my bench next to the grinder and another 1 beer to figure out how it works. It works great by the way. I sharpened about 10 bits from small up to about 5/8” or so. Easy to adjust and if you use just a tad bit of Common Sense anybody can figure it out. Great buy

This GENERAL Tools Drill Bit sharpener works really well. After reading just one review with a video, from someone that knows what their doing, and he did, I got one. And yes, it does 1/8" drill bits also!!! I have found absolutely no issues with this sharpener and have used it around 16 times mostly on 1/8" bits, and getting to the bigger ones. If you see bad reviews? Good chance they are wrong. If it is defective? Amazon would go good on it, and you get another one, it's that simple!!

I set mine up on a belt grinder. Throw away the included instructions which are useless and incorrect. This grinding attachment was originally sold by Snap-On Tools and you would be well advised to find those instructions for proper set up. I found them from pictures of the inside of the box. Or look up a few online videos. Works great all the way down to 3/16" bits. I wouldn't bother with smaller sizes as they are inexpensive to replace.

Greek product, but not for some.I used this for the first time and fixed some of my dull bits and brought them back to factory or possibly even better. I sat there with a friend and lent it to him and told him how to do it, but he messed up all of his bits even more. I guess it depends on the person.

Update: There is a learning curve. The angle setting works better if the spring clamp holding the bit uses minimal pressure to hold the bit down. This allows the thumb screw to adjust the bit and improve accuracy when turning the bit and reclamping. The closer you can keep the tip guide to the stone helps keep the chisel point shaped correctly.I like the price and the set up. The center point measured pretty close. However, using the 59 deg setting to produce a 118 deg bit did not work. Measured about 90 deg. Using the 68 deg setting seems to produce the 118 deg result (should have been 136 deg by the book). Next step is to grind a few old bits to see if practice helps produce useable bits. I do believe the 59 deg setting is wrong but if the 68 degree setting yields the 118 deg bit that I want then it will work.

This sharpener works great! You have to spend a little time working on aligning the cutting edge of the bit against the sharpener but once you figure out how to get the indexing right on that aspect you can quickly mount and sharpen your bits. The handle and wing nut in the photo are purchased off Amazon M-12 bolt and handle with M-12 wing nut. The slot is a little smaller than 12mm but I just filed it out a bit to accept the 12mm bolt a 10 mm prob fit a little loose but no filing. Make sure your mount is solid and squared up to your sharpener.

does a great job with drills 1/8 thru 3/4. You get the same sharpness every time and it is quick. Look at some youtube videos for better instructions.

this thing is junk, save your money. specs are loose, when you tighten the drill bit, the clamp raises the shank of the bit changing the angle. not good. very cheaply made, nothing is paraelle. worse instruction ever.