The Chamfer Tool is used after case trimming to deburr and chamfer the inside and outside of case necks. It can also be used to remove the crimp from primer pockets of Military/G.I. Brass. Our Chamfer Tool has now been redesigned to accept even more cases. It can be used on cases like the 50 BMG, 500 S&W, and Winchester Short Mags. Look under Case Conditioning Tools to locate this product.