30-Piece Diamond Grinding Bits Diamond Grinding Points 3 mm Diamond Cutter Carving Tools for Jade Jewellery Stone Ceramic
30-Piece Diamond Grinding Bits Diamond Grinding Points 3 mm Diamond Cutter Carving Tools for Jade Jewellery Stone Ceramic
Product Features
- Detailed size: 3mm/0.12" shank diameter, 3mm/0.12" ball head diameter and 45mm/1.77" length.
- Scope of application: 150 grit round ball drill bits for detailed drilling with the cutting force of diamond.
- High hardness: black nickel treatment, strong increase in hardness, improve grinding performance.
- High Stability The CNC router handle without skipping ensures the stability of grinding.
- Good performance: high strength and high temperature resistant, durable and won't drop sand.