Tools, Sharpening and Power Machinery - Barry

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alientrader1
11-15-08, 07:24 PM
I am trying to sharpen some tapcon drill bits with my
Drill Doctor, but I can't seem to find the correct angle.
118 or 135 degrees. I have been looking on the net for a while now and can't find a site with the answer.

Thanks for any help,

Barry

P.S. I have some 22 bits from a friend that have been sharpened at both angles.

nap
11-15-08, 08:18 PM
I don't have the angle answer for you Barry but you should be able to determine it from the bit itself.

What I question is; will your drill doctor sharpen carbide? It takes a special grind wheel to sharpen carbide. Using the wrong wheel is not ver successful and can actually damage the carbide and the grind wheel.
chandler
11-16-08, 05:08 AM
I doubt you can sharpen Tapcon bits with a regular drill doctor product. Drill sharpeners will only place a tapered finish on the tip, while the Tapcons have carbide tips intended for concrete, and are offset from the normal angle.