Durable and Long-Lasting Performance: The diamond core drill bit is forged with industrial-grade tungsten carbide alloy, allowing the core drill to maintain cutting precision through 300+ cycles on reinforced concrete. The diamond core drill bits are built with a multi-layered sharp tip, ensuring effective drilling on granite, quartz, and micro crystalline stone while maintaining long-lasting sharpness. Versatile Design: Engineered with 20mm/35mm/50mm progressive stages, the stepped drill bit handles sink installations and pipe penetrations in one pass. The diamond drill bits for glass feature welded segments that prevent the hole saw kit from wobbling when transitioning between tile layers and quartz counter-tops. Sharp and Three-Stage Reaming: These drill bits feature a sharp, multi-layered tip and three-stage reaming design. The diamond drill bits' staggered reaming flutes enable the adjustable hole saw to remove debris 50% faster than standard core drill bits, minimizing chipping on delicate. Easy to Use - Universal Compatibility: The drill bit is easy to install on most standard drills, allowing both professionals and DIY enthusiasts to quickly and accurately drill through a variety of materials. Simply lock the core drill bit into impact drivers or rotary hammers – no pilot holes required. Versatile for Various Materials: From 6mm glass tiles to 80mm granite slabs, the diamond drill bits penetrate 9+ surfaces without bit swaps. These drill bits are perfect for home improvement, construction, and professional projects, offering reliable performance on every surface.
2025 Effective Diamond Core Drill Bit, Diamond Stepped Pagoda Drill Bit 20-35-50mm Hole Expanded, Chamfer Multi-Layer Conical Hole Opener for Metal, Concrete, Tile, Marble, Engineered Stone.

Specifications:
Weight: 391g
Size: As Shown
Material: Alloy Steel, Diamond

Package Include:
1/2 * Effective Diamond Core Drill Bit