4-Piece Diamond Core Drill Bit Set & Singles (1/4" to 1/2") | All-Grit for Tile, Stone, Glass

About this item

• Choose Your Kit: Full Set or Individual Sizes: maximize value with the complete 4-Piece Set, or purchase the exact single size you need. The set includes the most-used diameters: 1/4" 5/16" 3/8"  and 1/2"(approx. #6, #8, #10, #12). Fits angle grinders (with arbor) and drills (requires mandrel)
• Dual-Function: Drilling & Edge: shaping in One-The revolutionary full-surface diamond grit design allows this bit to excel at two tasks: drilling perfectly clean holes and grinding/smoothing rough edges. It's the versatile solution for professional finishing work
• Cooling Wax Tech for Longer Dry-Drilling Life: engineered with built-in cooling wax. During intense dry drilling, the wax melts to actively reduce friction heat, preventing material burn-out and dramatically extending the bit's service life compared to standard bits
• Cuts All Hard, Brittle Materials with Ease: tackle your toughest projects. The premium diamond matrix delivers fast, clean, and chip-free results in porcelain, ceramic, marble, granite, slate, glass, quartz, and engineered stone
• Secure-Lock Hex Shank for Vibration: free Use-Features a standard 1/4" hex shank with full flats for an ultra-tight, anti-slip grip in any drill or grinder chuck. This ensures safe, precise, and vibration-free operation at high speeds