Forster Cutter Shaft .17 Caliber spare / replacement for Original Trimmer. Specifications for Forster Cutter Shaft spare / replacement: Manufacturer: Forster Quantity: 1 Features of Forster Cutter Shaft Replacement: 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 a Set Screw for locking Pilots. Package Contents: Forster Cutter Shaft Replacement O-ring Set Screw Forster CT1010-CTC417: Cutter Shaft .17 Caliber spare / replacement for Original Trimmer