The Forster "Classic" Case Trimmer is designed for large caliber cartridge case trimming. It is suitable for trimming more than two hundred different big bore calibers ranging in length from 1-7/8" to 4-1/8" long. The "Classic" trimmer like the "Original" utilized Brown and Sharpe style collets and caliber specific pilots to ensure a clean square cut (sold separately). Base Length: 6-1/2" Collets Used: Forster Collets #5, #6, #7 and #8 Collets Included: None (Sold Separately) Pilots Used: Forster Pilots Included: None (Sold Separately) Features: By adding the standard length base (item 490-007) shorter cases can be trimmed