The Lee Case Length Gauge and Shell Holder set offers a wide selection of sizes to accommodate the most popular cartridge calibers. Crafted from hardened steel, these tools are built for long-lasting performance and precision, meeting tight SAAMI specifications. The Case Length Gauge provides a quick and accurate method to trim brass cases while ensuring the mouths are perfectly squared. The shell holder securely holds the case in place during the trimming process and when using your Lee Case Trimmer Cutter. Together, these tools deliver maximum accuracy in trimming and squaring brass cases, enhancing the precision and consistency of your reloads.