Diamond Core Drill Bit 1 3 8 Inch With 58 11 Thread For Granite Marble Concrete Quartz Countertops Dry Or Wet Drilling Laser Welded Turbo Segments Pro Grade 4 Inch Total Length 73mm Drilling Depth 10mm Diamond Height

Premium Diamond Core Drill Bit (1 pc) for Granite and Quartz
✔️ 1-3/8 in dia, 5/8-11 thread, 4 in length, 73 mm depth

This diamond core drill bit is designed for cutting through hard stones like granite, marble, quartz, and engineered stone. It’s a handy tool for countertops, tile work, and stone fabrication, delivering clean, precise holes with dry or wet drilling on an angle grinder.

✅ Diameter: 1-3/8 in (34.9 mm), Thread: 5/8-11 UNC, fits common grinders
✅ Total length: 4 in (101.6 mm); Drilling depth: 73 mm (2.87 in)
✅ Diamond height: 10 mm; Grit: 25/35
✅ 4 turbo-style laser-welded segments for fast cutting and dust evacuation
✅ Vacuum brazed outer core design for clean cuts and core protection
✅ Application: Granite, Quartz, Quartzite, Marble, Engineered Stone; Dry or Wet drilling with angle grinder

💡 What is a diamond core drill bit used for in stone fabrication? This handy tool is designed to create clean holes in hard stone materials used in countertops and tile work. - Handy for countertop installations - Works with dry or wet drilling on angle grinders - Laser-welded turbo segments provide fast cutting and longer bit life - Vacuum brazed outer core design helps keep the core intact