The CMT 801.317.11 is a Mortising Router Bit. Equipped with thick tips and negative shear angle design, CMT Mortising Bits guarantee you a flawless performance. Mortise perfect hinges with no splintered edges or rough bottoms. They also make an easy job of piece work in both natural wood and wood composites. Fit most popular mortising jigs. Features: * 1/4-Inch Shank * 1-1/4-Inch Cutting Diameter * 1/2-Inch Cutting Length What"s In the Box: * CMT 801.317.11 Mortising Router Bit