The 45° chamfering cutter is designed to cleanly break the edges of rifling and chamfer revolver cylinder chamber mouths for faster reloading.
It comes with a handle, one brass pilot for .22 caliber, and is packaged in a polypropylene box, with additional pilots available for various calibers.
The set includes a hardened steel cutter, an aluminum handle, and a brass pilot, with specific size variations for different calibers and firearm models.