Grinding Bits 30pcs 150Grit Tip Diamond 3mm Electric Grinder Carving Tools for Jade Stone Engraving
- High-strength and high-temperature resistant, durable and will not drop sand.
- 30pcs/set, 150 grit drilling bits with 3mm head and 3mm shank diameter.
- CNC milling handle bar without skipping, ensures the stability of grinding.
- Black nickel treatment greatly improves hardness, easily cuts glass, stone, tile, etc.
- Torch-shaped drill bits for fine-detail drilling with the cutting power of diamond.
