Forster® Original Case Trimmer Collet

Forster® Original Case Trimmer Collet

Brown & Sharpe-style Collets is one of the secrets to precise and repeatable case trimming. If the case isn’t properly inserted and securely held in the case trimmer, any subsequent operation will not be accurate.

  • The internal Collet steps ensure that the case head is firmly seated in the Collet, even when there is case rim diameter variation, unlike one-size-fits-all universal chuckheads or multi-piece shell holders.
  • The tapered design ensures that the Collet securely closes on the case rim without pulling the case back. When you lock a case into one of our Case Trimmers, it stays exactly where you put it. 

    The dimensions for each Collet step shown below correspond to common case rim diameters


    Collet #1 – CT2001 (.379, .473 & .532 Dia)

    222 Rem. Mag, 223 Rem, 225 Win, 22-250, 220 Swift, 243 Win, 6mm Dasher, 6x47 Lapua, 6XC, 244 Rem, 6mm B.R. Rem., 257, 25-06, 264 Win. Mag, 260 Rem, 6.5x47 Lapua,  6.5  Creed, 6mm Creed, 6mm SLR, 6.5x57 Mauser, 6.5mm Win, 6.5 Jap Mauser, 6.5x55 Swede, 6.5x55 SKAN, 270 Win, 270 Savage, 270 Gibbs, 270 Wby, 270 Ackley, 7x57 Mauser, 7mm Wby, 7mm-08, 280 Rem, 284 Win, 7mm Rem. Mag, 7mm B.R. Rem, 30-06, 308 Win, 300 Mag, 300 Sav, 303 British


    Collet #2 – CT2002 (.350, .418 & .506 Dia)

    30-30, 7.5x55 Swiss, 


    Collet #3 – CT2003 (.356, .440 & .545 Dia)

    6mm PPC, 6mm Krag, 300 Rem. Ultra Mag, 300 Win, 300 WSM, 

    Collet #4 – CT2004 (.310 & .605 Dia)

    300 Norma Mag, 338 Norma Mag, 338 Lapua Mag


    If you dont see a caliber listed please contact us.  For 25cal, 270cal and 338cal please inquire. 






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Redding, CA 96002


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