Diablo Core Bit DMAPLCC1110 3 7 8 Inch (SDS Plus Carbide Tipped Thin Wall Core Cutter Concrete Brick Block Masonry Conduit Coring) Rotary Hammer Bit Knurled Aluminum Grip Handle: Slip resistant Knurled Aluminum Grip Handle: Slip resistant textured barrel ensures positive hand engagement in freezing or rain slicked transit environments Weather and Abrasion Resistant Primary Application Focus Open End Water Discharge & Trash Pump Dewatering Pro Tip: Unroll the hose fully along a straight path before starting your pump to prevent kinks or twists from restricting fluid discharge and increasing backpressure on the pump housing 000 RPM (Rotary Hammer Rate) Material Application Compatibility Poured Concrete The Diablo DMAPLCC1110 3 7 8 Inch SDS Plus Thin Wall Carbide Core Bit is a high speed masonry hole cutter engineered for coring clean openings in concrete