Diamond 4 inch Concrete Hole Saw Masonry Core Drill Bit Heavy Duty for Brick, Cinder Block Standard Shank Drilling Holesaw Tool - DRILAX

• UPC   850004328118
• Durable 4 core drill bits for concrete, exactly 4 inches diameter. Tool Life: 7 to 10 holes in concrete. Not for Hammer or Impact drilling. Concrete hole saw 4 inch with 2 inch depth of cut and standard 3/8 inch shank for standard cordless or electric drill. Not for hammer action 4 in concrete hole saw dry or wet use drilling holes in concrete block, brick, stones, basement walls, foundations, tile, marble, granite countertop, ceramic, porcelain Sintered diamond 4 in concrete core saw bits for concrete. Diamond is sintered, not visible. Laser welded diamond concrete hammer core bit fits your standard drill. If abused, this hole saw will no last more than a few uses.