Nifty Drill Bit Sharpening Trick | Make:
Sep 17, 2015 · Sharpen your drill bit carefully using a bench grinder being extra careful not to be too heavy handed. After only a few moments of grinding, remove the drill bit and test against the two hex headed bolts as shown in the image. After touching up each cutting side of the drill your drill should fit squarely in the angle of the two bolt heads.