Home Products Power Tool Accessories Masonry Drill Bits Spline 4-Cutter Masonry Drill Bit 2″ Cutting Length 18″ Overall Length 22″ Spline 4-Cutter Masonry Drill Bit 2″ Cutting Length 18″ Overall Length 22″ (83922) 4 cutter spline 4-cutter tip prevents seizing while drilling in reinforced concrete Crushes 20 times faster than standard masonry drills Find a Retailer