The RCBS Trim Pro Case Trimmer 3-Way Cutter is a specialized cutting head designed for .338 caliber brass case preparation featuring an innovative three-blade configuration that trims chamfers and deburrs simultaneously.RCBS .338 Caliber 3-Way Cutter (Model 90287)Three-blade head design for simultaneous trimming chamfering and deburringCompatible with all RCBS case trimmersCustomizable with caliber-specific pilotsSeparate cutting head for dedicated .338 caliber useEssential for reloaders seeking efficient brass case preparation this cutter streamlines the trimming process by performing three critical operations in one pass saving time and ensuring consistent case preparation for .338 caliber ammunition.