The Cutter Shaft does most of the hard work of a Forster Case Trimmer: a bit with a cutting blade trims the case neck; the high-alloy steel shaft holds all of the rotating specialized case conditioning accessories.
Four staggered-tooth cutting edges provide fast, smooth, chatterless cutting for perfectly square case mouths. Cuts are bright and uniform.
Bearing is hand-honed to fit the Cutter Shaft for a precision fit.
Also included are an O-ring and an 8-32 x ⅛″ set screw for locking Pilots and Case Trimmer tools.