Thingiverse
drill bit sharpening guide
by Thingiverse
Last crawled date: 4 years, 2 months ago
I made this after watching a youtube video on sharpening drill bits by hand. It definitely helped quite a bit in accuracy. this thing would work great on a bench grinder and is really sized for that. I don't have one at home however so I used it as pictured on a disc sander and had a fun filled few hours sharpening all my old drill bits. I tested them on wood, aluminum, and steel tube and they worked great! I designed it for general purpose and I think it was 11 deg angle.
To use:
-If you don't know about drill bit sharpening educate yourself somehow so you know what your doing and how to do it safely. Don't hurt yourself, its probably dangerous so do it at your own risk.
-The guide bottom should sit at a 90 deg angle and the face parallel to the grinding surface.
-Insert the bit as shown to grind an cutting edge that is equal on both sides.
-I just free hand the second grind of the relief angle as it doesn't need to be precise.
To use:
-If you don't know about drill bit sharpening educate yourself somehow so you know what your doing and how to do it safely. Don't hurt yourself, its probably dangerous so do it at your own risk.
-The guide bottom should sit at a 90 deg angle and the face parallel to the grinding surface.
-Insert the bit as shown to grind an cutting edge that is equal on both sides.
-I just free hand the second grind of the relief angle as it doesn't need to be precise.
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