Electric Drill Bit Grinder Fully Automatic 180W High-Precision 3-13 MM Twist Drill Bit Sharpener Grinding Machine CBN ,Power Tools

Grinding range: 3-13 Standard collet: 2~13 total 12 collets Grinding wheel model: 13 type (CBN grinding white steel) Adjustable angle: 90°~140° Power: 180w