Backed by over 30 years of field experience, the Alpha DRY Series Dry Core Drill Bit is a trusted solution among countertop fabricators, plumbers, and tile installers. Unlike conventional wet-core bits, this professional diamond drill bit enables true waterless drilling tools performance—eliminating hoses, slurry, and cleanup time. Whether you’re doing granite drilling for a kitchen remodel or engineered stone cutting in a commercial project, the DRY Series delivers chip-free precision where it matters most.

Optimized for Speed, Cleanliness & Compatibility

Designed specifically for countertop hole drilling, the DRY Series creates smooth, rounded corners in square or rectangular sink cutouts—reducing edge chipping and post-processing. Its aggressive diamond matrix ensures fast penetration through even the hardest surfaces, including porcelain tile, quartz, and crystallized glass. The bit seamlessly integrates with standard angle grinder accessories (5/8"–11 spindle), making it one of the most versatile stone cutting tools in your kit. No water? No problem. Just attach, drill, and move on.

Full Technical Specifications – All Available Models

• Application: Dry use only – no water cooling required

• Shank Type: Standard 5/8"–11 external thread (fits Makita, Bosch, DeWalt, Milwaukee, etc.)

• Segment Height: 0.47" (12 mm) for extended life

• Certifications: CE, RoHS compliant

• Warranty: 1-year limited warranty against manufacturing defects