Premium 12PCS Diamond Core Drill Bit Kit – Industrial-Grade Precision for Tough Materials
High-density diamond grit coating ensures ultra-long lifespan and smooth drilling in concrete, brick, tile, and reinforced stone. Hardened steel body with laser-welded segments resists bending/breakage under heavy-duty use. Universal SDS-Plus adapter included for quick compatibility with rotary hammers and drills. Precision-engineered sizes (6-68mm) cover plumbing, electrical, HVAC installations, and DIY projects. Cooling slots prevent overheating, maintaining bit integrity during extended use. Electroplated diamond matrix delivers 3X faster drilling vs. standard bits—no chipping or jagged edges. Ideal for professional contractors and home renovators requiring clean, accurate holes in masonry. Bulk pricing available for wholesale buyers—global shipping, unmatched value.