T-slot coring bit with side protection engineered for engineered stone and granite. 5/8"-11 threaded, 20 sizes from 1/2" to 5" for variable speed grinders. No sharpening required.
The PACBKO is a 5/8"-11 threaded T-slot coring bit with side protection, engineered for clean, aggressive coring in engineered stone and granite. The T-slot segment geometry and protective side matrix deliver fast cutting while shielding the barrel from side wear, extending bit life on dense stone. 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. Does not require periodic sharpening. Works best under light, steady pressure — the bit is designed to self-feed with minimal effort.
No — the PACBKO does not require periodic sharpening.
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.