The Forster "Original" Case Trimmer is the perfect choice for trimming most calibers with bullet diameters from .171" to .459" and cartridge length no greater than 2.94". This trimmer is a perfect choice for the novice or experienced reloader looking to precisely trim down brass cases to within specification. It is a fine mini-lathe that uses the accurate Brown and Sharpe type collets to accurately hold the rims of most rifle and pistol calibers within the range given above. Standard base (5-3/8") included. Additional short 4-5/8" base (item 759-955) or long 6-1/2" base (item 491-050) can be purchased separately to trim shorter or longer cases. Base Length: 5-3/8" Collets Used: Forster "Original" Case Trimmer Collets #1, #2, #3, #4 Collets Included: None (Sold Separately) Pilots Used: Forster Pilots Included: None (Sold Separately) Features: Used to trim cases from 17 Caliber (with additional 17 caliber cutter shaft Not Included...