Milescraft 1293 Interior Door Mortising Kit for 1-3/8-Inch Doors and Jambs All steel construction for long lasting durability Self clamping template frames mount to door and jamb without nails Sturdy plastic carry case for convenient transport and storage Made in the USA Requires 5/8-Inch TurnLock or other guide bushing and 1/2-Inch straight router bit (Not Included)