Vacuum brazed 5/8"-11 threaded coring bit engineered for marble, ceramic, porcelain, and glass. Available in 21 sizes from 1/4" (6 mm) to 5" (130 mm) for variable speed grinders.
The PAVBDB is a vacuum brazed diamond coring bit with a 5/8"-11 thread, engineered for clean holes in marble, ceramic, porcelain, and glass. The vacuum brazed matrix delivers aggressive, fast cutting across a wide range of sizes. Designed for a variable speed grinder so you can tune RPM to match material density on every job. Rated for dry and wet use; a water feed is recommended for sizes under 12 mm to extend bit life. This coring bit cannot be sharpened. Works best under light, steady pressure — the bit is designed to self-feed with minimal effort.
No — the PAVBDB is a vacuum brazed coring bit and cannot be sharpened.
Yes, it is rated for both dry and wet use. For sizes smaller than 12 mm we recommend a water feed to extend its lifespan.
Material densities vary widely, so a variable speed grinder lets you tune RPM per job for the best cut quality and longest bit life.
Minimal. The bit is designed to work its way through the material on its own — added pressure typically does more harm than good.
Our technical team will recommend the ideal tool for your job.