Drill Doctor

[kxraptor]

I use the Drill Doctor on bits larger than 1/4",,,,others[smaller] I just discard

[Dredwolf]

It arrived today, I will see if tomorrow cooperates enough for me to unpack it and try it, and maybe get some review pictures....

[Dredwolf]

Pictures later, observations first.

Other successful users of the Drill Doctor are right, you MUST watch the DVD to get the best results.

I purchased the 750, with the idea of being able to adjust the material take off, and grind 118 and 135, and even custom grinds.

Now I own two 6" grinders, one Northern Tool and one Harbor Freight. The Northern always vibrated too much, so the kid bought me a Harbor Freight one that ran MUCH smoother. I changed the wheels on the Northern with a wire wheel and a new HF 60 grit wheel, and IT ran much better.

Years ago, I could do decent job of sharpening a drill bit on the big, old 8" dad had, but the wheels on the HF grinder are pretty soft, but it seemed I also lost my touch.

I started out with a Ti-coated 1/2" HF bit that was chipped, and a HSS, aircraft length 1/2" Irwin bit that the outer edge of one flute was chipped. I started with the HF bit first, it appeared to be 118 degree.

Setting up the bit in the holding chuck is critical, and this is where the video helps "show" in motion what the picture in the owners manual can't. I know this because I tried to just read the manual, and was not making much progress. I then went and watched the video, saw what i was doing wrong, and watched it again to make sure.