Diamond Core Drill Bits Set | For Glass, Tile & Granite | 25-100mm Hole Saws

Achieve clean, precise holes in hard, brittle materials with these diamond drill bits. The 25-100mm hollow core design provides superior chip removal and cooling, significantly reducing the risk of cracking or chipping in glass, tile, and stone. Engineered for smooth, professional-grade results with standard rotary tools. Features and Benefits - Diamond-impregnated cutting edge - Delivers consistent, fast cutting action on glass, ceramics, porcelain, and granite without wandering or grabbing. - Hollow core extractor design - Efficiently removes material core and dissipates heat, preventing overheating and extending bit life. - Complete size range from 25mm to 100mm - Covers a wide variety of common plumbing and installation hole requirements in a single set. - Reinforced steel body construction - Provides exceptional durability and stability during operation, even under heavy use. - Compatible with standard drill chucks and arbors - Works seamlessly with most rotary drills and drill presses for versatile workshop use. Applications - Installing plumbing fixtures - Create perfect holes for sink drains, shower valves, and pipe penetrations in ceramic tile and porcelain. - Crafting and glasswork - Drill clean openings in stained glass, mirrors, or glass panels for artistic projects or repairs. - Stone and countertop fabrication - Bore holes for faucets or accessories in granite, marble, or engineered stone slabs. - Electrical and low-voltage installations - Make precise openings for outlets, switches, or cable runs in tiled walls or hard surfaces. Note For optimal performance and longevity, use with water for lubrication and cooling. Always secure the workpiece and start drilling at a low speed to establish a clean groove.