PORTER-CABLE 43745PC  Hinge Mortising Straight Router Bit Designed for mortising of doors to accept locks, lock face plates, hinges, and for general stock removal All cutters fit 1/4"-28 threaded shanks Cut Capacity - Width: 1-1/4-Inch Flute Length: 9/16-Inch Upc is: 039404131430 Model is: 43745PC