Home Products Power Tool Accessories Masonry Drill Bits Spline 2-Cutter Masonry Drill Bit 9/16″ Cutting Length 17″ Overall Length 23″ Spline 2-Cutter Masonry Drill Bit 9/16″ Cutting Length 17″ Overall Length 23″ (83810) 2 cutter spline Self-centering tip for precise drilling Crushes 20 times faster than standard masonry drills Find a Retailer