General Tools ドリル研削アタッチメント (825)

I requested a replacement and got it in a few days. I have yet to send the incomplete one back, because Kohls and any other non-essential businesses have been shut down due to Covid-19 outbreak again. It takes a little doing to set this up. I first tried it on the face of my 8" grinder with poor results. Problem with setting up on the face are: If to high, you will grind the heel too much. If too low you will grind the point too much. If you are going to grind different sizes of drill bits you will be constantly trying to adjust the height to be exactly at the center of the wheel. I then tried mounting this tool to the side of the 8" grinding wheel and got really good results. Just be careful to grind very small amounts so you are not putting much pressure on the side of the grinding wheel and this will also keep the temperature of the drill bit low so you do not change the temper. I have had no noticeable grooves in the side of my wheel and I am getting nice sharp drill bits. Always, Always wear a face shield and protecting eye glasses just incase.

Simple to use..saves me a lot of money replacing worn bits..

Does a good job, but bit fiddly to set up. Replaced couple of the adjustment screws with hand screw adjusters, as this makes setting different drill size bits much quicker and more accurate. Once set up properly to grindstone it works very well. Take your time getting the angles right and practice with a couple of old drills and results will be good. Did a lot of blunt drills, which now cut really well, set the cut angle to shallow cut for hard metals, excellent results through thick steel.

Muito bom, chegou rápido e tem um bom acabamento!

Nice product