2 1/2 Inch Diamond Core Drill Bits – Heavy-Duty 1-1/4"-7 Thread Wet/Dry Core Bit for Cured Concrete with Rebar, Hard Masonry, Brick, Block, Stucco & Stone – Shark-Grade Performance

Meet the ultimate solution for professional-grade coring: 2 1/2 inch diamond core drill bits engineered for uncompromising performance on the toughest surfaces. With a robust 1‑1/4‑7 standard thread, 400mm (15-3/4") drilling depth, and optimized 2 1/2 inch diameter, this bit fits seamlessly into most handheld or rig-mounted core drills—delivering rock-solid stability in cured concrete with rebar, hard masonry, brick block, stucco, and natural stone. Its intelligent wet-drilling protocol—starting at a 15° angle before going vertical—ensures clean, chatter-free entry, while integrated water cooling dramatically boosts service life. Dry operation is also supported for softer materials like tile or lightweight block. The ultra-sharp, long-lasting diamond grit cuts smoothly and evenly, and the shark-engineered concentric axis design guarantees balance, control, and durability under heavy load. Whether you're installing air conditioners, running conduit, or securing railings, this versatile core bit delivers precision, power, and reliability—every time. Built not just to drill—but to dominate.

• Precision 2 1/2 Inch Diameter & 400mm Depth: Engineered to exacting standards—2 1/2 inch diamond core drill bits with 15-3/4"/400mm drilling depth and 1‑1/4‑7 standard thread ensure universal compatibility with most core drill machines and deliver deep, stable penetration in reinforced concrete and dense substrates.
• Optimized Wet-Drilling Operation: Designed for simple, controlled wet drilling on cured concrete with rebar—start at 15° angle, then transition vertically for smooth entry; water cooling significantly extends bit life, while dry drilling remains viable for brick, stucco, and softer masonry.
• High-Efficiency Diamond Grit Cutting: Featuring premium-grade diamond segments bonded to a precision-ground steel matrix, these 2 1/2 inch diamond core drill bits deliver sharp, consistent, low-vibration cutting across hard masonry, stone, tile, and reinforced concrete—maximizing speed and minimizing operator fatigue.
• Human-Centered Structural Design: The shark-inspired concentric axis geometry and precisely calibrated sawteeth distribution ensure balanced rotational stability, superior heat dissipation, and exceptional durability—making it one of the most reliable 1-1/4"-7 thread diamond core bits for demanding job sites.
• Ultra-Versatile Application Range: Purpose-built for multi-material performance—ideal for 2 1/2 inch hole drilling in cured concrete with rebar, brick block, stucco, natural stone, tile, and hard masonry—widely used in HVAC installations, pipe routing, stair railing anchoring, and structural renovation projects.