Electric Drill Sintered Diamond Drill Bits Granite Quartz Marble Diamond Bits For Drill 6mm-85mm

1. Sintered Diamond Core Drill Bits are mainly used to drill granite, marble, hard porcelain and tiles.

2. Designed for fast and efficient coring. The high concentration of exposed diamond ensures long tool life

3. Dry and wet drill OK. 

4. It is fit for Electric drill, hand drill.