Montolit Mondrillo Diamond Core Bits
- Designed to drill the hardest porcelain, ceramic and natural stone (granite, marble, slate and limestone) tile
- 5/8"-11 threaded attachment fits most angle grinders
- For wet or dry use
- Made in Italy
Mondrillo Diamond Core Bits re equipped with high quality diamond construction ensuring the Bit will quickly dry drill many holes (40 - 60) in the hardest porcelain, ceramic and natural stone. Diamond drill bit works best at 11,000 RPM. The average drill time is 20 seconds per hole!