DIY: How to Sharpen a Drill Bit
Difficulty Level
Tools/Supplies Needed:
• bench grinder• square
• drill bit
• safety glasses
Procedure:
• a drill bit should have a cutting/leading edge angle of 59-60 degrees• ensure that the centre point of the bit stays centered using a square
• the cutting/leading edge should be the closed surface to the material you are cutting
• the relief area/trailing edge should be angled at least 5 degrees back from the cutting/leading edge
• this maximizes cutting efficiency, reduces heat, and ensures the drill bit works correctly
• be careful not to overheat it so it does not wreck the temper of the metal
• also when sharpening, move the bit along evenly on the grinding wheel which ensures even wear on the grinding wheel
Video tutorial on how to sharpen a drill bit. After usage a drill bit can either dull or chip which does not make it cut as efficiently as it should. A drill bit can be resharpened to make it functional again, there is no need to throw it away. Even broken drill bits can be resharpened. This tutorial applies to a standard style drill bit. Make sure you wear safety glasses when doing this procedure. A drill bit angle gauge can be used, but is not necessary. The more practice you get, the better you will become at sharpening drill bits. I do this by free hand, no special tools are required for the procedure.