Lee Gunsmith and Reloading Equipment. The case length gauge (pilot) and shell holder must be ordered as case length gauge and shell holder for each caliber. Specifications for Lee Gunsmith And Reloading Equipment 90127: Manufacturer: Lee Caliber: 10mm Auto Quantity: 2 Piece Additional Features: Case Length Gauge W/Shell Holder Fabric/Material: Hardened Steel Package Contents: Lee Gunsmith And Reloading Equipment 90127 The Lee 10MM Auto Case Length Gauge/Shell Holder 90127 is a quality addition to the Lee Precision lineup. For more great deals on Case Preparation by Lee Precision please browse our Lee Reloading Equipment page. Lee Gunsmith and Reloading Equipment 90127