PTG Shotgun Spiral Flute Forcing Cone Reamer High Speed Steel Information
Lengthening the forcing cone in a shotgun barrel will improve patterns and reduce felt recoil. Constructed of high speed steel with 8 left hand spiral flutes, these 12″ reamers will cut 12 gauge forcing cones up to 3.1″ long and 16, 20 and 410 bore up to 2.9″ long. Features a 1/2″ shank with 7/16″ flats.