dry drilling for porcelain,tile,granite,marble,stone,masonry,brick
High performance vacuum barzed diamond core drill bit provide fast and smooth drilling;
Premium-grade diamond core drill bitt for long lifetime,less chipping and minimizing any breakage;
Vacuum brazed technology leads to less heat generation and can bear heavy duty working;
Diamond core drill bit can be used at a higher temperature to drill through porcelain tile, ceramic, marble with ease;
Diamond core drill bit with better f...