Vermont American 23457 Hinge Door and Jamb Mortising Template Set for 3-1/2-Inch to 4-Inch Butt Hinges Use for mortising door and jamb for 3-1/2-Inch and 4-Inch butt hinges Includes templates for the two most popular interior and exterior hinge sizes Requires use of 5/8-Inch router guide bushing model 23458 (not included)