5/8" x 16" Spline Bit, 4-Cutter

Makita 4-Cutter Spline Bit is designed to work with Rotary Hammers that accept Spline shank bits to drill holes in concrete. The 4-cutter technology combines with the central guiding action for efficientand accurate drilling. The high quality steel and special impact grade carbide make for added durability and long life.