Forster Original Case Trimmer Collets #1, #2, #3, and #4

Forster Original Case Trimmer Collets #1, #2, #3, and #4

Collet and Pilot Fitting Chart
Chart by Dimensions

The collet grips the rim of cartridge brass on center in the Forster Case Trimmer. Each collet fits 2-3 different rim diameters and many cartridges have the same rim diameter. For Example: Collet #1 fits 223 Remington, 308 Winchester, 338 Winchester Magnum and all other cartridges with the same rims. Collet #2 fits 22 Hornet, 32-20, 30-30 Winchester, 6.5mm BRM, and all other cartridges with the same rims. Collet #3 fits 22 PPC, 6mm PPC, 40 S&W, 30-40 Krag and all other cartridges with the same rims. And Collet #4 Fits 300 Norma Mag, 375 H&H, 338 Lapua Mag, 45-70 and all other cartridges with the same rims.

We have links to charts where you can select your collet by the cartridge or by the rim diameter.