Item Type: Drill Bit Sharpener. Grind the 130° standard drill bit back cut surface only. Not all angles can be grinded. Application: For Grinding Common Twist Drills: Approx. 3mm (0.12in) / 0.12in, 3.5mm (0.14in) / 0.14in, 4mm (0.16in) / 0.16in, 4.5mm (0.18in) / 0.18in, 5mm (0.20in) / 0.2in, 5.5mm (0.22in) / 0.22in, 6mm (0.24in) / 0.24in, 6.5mm (0.26in) / 0.26in, 7mm (0.28in) / 0.28in, 7.5mm (0.30in) / 0.3in, 8mm (0.31in) / 0.31in, 8.5mm (0.33in) / 0.33in, 9mm (0.35in) / 0.35in, 9.5mm (0.37in) / 0.37in, 10mm (0.39in) / 0.39in, 10.5mm (0.41in) / 0.41in, 11mm (0.43in) / 0.43in, 11.5mm (0.45in) / 0.45in, 12mm (0.47in) / 0.47in.
eBay