Hornady High Speed Case Trimmer Collet Features The Hornady High Speed Case Trimmer Collet is sized for small and standard rifle cases covering rim diameters of 0.375 and 0.470 respectively. It is designed to work as part of Hornady s 3-in-1 power case trimmer system clamping the case securely so it stays centered and steady while being trimmed to length. A secure properly matched collet is what keeps trimmed case lengths consistent from piece to piece which matters for reloaders chasing uniform chamber fit and ignition. Because the collet is sized specifically to the case head rather than a one-size-fits-all clamp it reduces slippage that can lead to an uneven or inaccurate trim. This replacement collet lets reloaders outfit their Hornady case prep station for small and standard rifle cartridges without needing to replace the entire trimmer. It is sold as a single collet for use in an existing Hornady power trimmer setup. Reloaders standardizing their case prep around small and standard rifle brass will find this collet a straightforward addition to their bench. Hornady High Speed Case Trimmer Collet Specifications Manufacturer: Hornady Model: High Speed Case Trimmer Collet Size: Small and Standard Rifle Reloading Case Prep Type: Trimmer Collet Quantity: 1 Available At: GrabAGun