The Forster "Original", "Classic", "Power", Case Trimmer Primer Pocket Chamfering Tool is the ideal tool to use for chamfering thousands of cases with Forster Case Trimmers. It is smooth cutting with staggered tooth cutter that will chamfer thousands of cases consistently. By setting the stop collar, the reloader controls the depth and uniformity of the cut. As with the Primer Pocket Cleaner, simply hold the case mouth over the Primer Pocket Center while you remove the crimp by turning the Case Trimmer handle. No collets required. Primer Pocket Center, which is required to support the case mouth, is sold separately. Notes: Primer pocket chamfering tool is used with primer pocket center (item 628-603) Primer pocket chamfering tool is used attached to the Forster original, classic or power case trimmer May be used to remove military primer crimps from any military cartridge