Dry Core Bits

Dry diamond core bits for drilling clean holes in granite, marble, quartz, and other stone materials without water. Dry core bits are designed for on-site installations where water supply is limited or impractical, such as faucet holes, soap dispenser holes, and other cutouts in already-installed countertops.

These core bits use vacuum-brazed or sintered diamond segments with specially engineered bonds that dissipate heat during dry drilling. They fit standard angle grinders and drill motors with the appropriate thread adapter.

• Designed for dry drilling without water cooling
• Common sizes for faucet, soap dispenser, and fixture holes
• Work on granite, marble, quartz, quartzite, and porcelain
• Compatible with angle grinders and core drill motors
• Ideal for field installations and remodel work

Stock dry core bits in your installation kit so your crew is ready for any on-site drilling job.