30pcs 150Grit Diamond Grinding Bits Kit Different Head Shape Mixed Tools for Electric Grinder Jades Carving
- 30pcs different drilling bits with 3mm shank diameter, 45mm/1.77in length and 150grit.
- Different shaped drill bits for fine-detail drilling with the cutting power of diamond.
- CNC milling handle bar without skipping, ensures the stability of grinding.
- High-strength and high-temperature resistant, durable and will not drop sand.
- Black nickel treatment greatly improves hardness, easily cuts glass, stone, tile, etc.
