The Hornady 22 Caliber Case Trimmer Pilot features a precise 0.288" diameter designed specifically for trimming 22 caliber brass cases to exact specifications.Hornady 22 Caliber (0.288") Trimmer PilotCompatible with Hornady Cam-Lock Case Trimmer and original Hornady Case TrimmerManufactured from highest-quality materials for durabilityCaliber-specific design for precise brass case trimmingBuilt to provide years of reliable serviceEssential reloading component for precision shooters and handloaders who demand consistent brass case preparation and reliable performance at a competitive price point.