For most calibers, your Forster Case Trimmer already includes the needed parts and components, and with normal use you can rely on them for years to come.
For replacement and special calibers, you may browse the following parts at this online catalog:
Case Trimmer Bases – Optional bases for the Original and Classic manual Case Trimmers, in two sizes.
Case Trimmer Stop Collars – Fit around the Cutter Shaft with fine adjustments to control the length of cuts for Case Trimmer accessories.
Case Trimmer Cutter Shafts – Trim case mouths with four staggered-tooth cutting edges made of high alloy steel.