This Montolit Diamond Drill Bit is made in Italy with high quality diamond construction ensuring the Bit will quickly drill many holes (up to 25 or more). Bit can be used on the hardest porcelain, ceramic, natural stone (granite, marble, slate and limestone), terra cotta and glass.
- Drill through ceramic, porcelain, natural stone and glass
- Quality design and construction ensures long life
- Drill up to 25 or more holes per bit
- Designed for any 3/8" rotary drill (Minimum 800 RPM)
- Use in dry and wet applications
- Average drill time is 20 seconds
- Available in 3/16", 1/4", 5/16", 3/8" and 1/2" sizes