The RCBS 90366 Trim Pro-2 Manual Case Trimmer Kit is designed for trimming cases in calibers ranging from .22 to .45. It includes a spring-loaded universal shell holder that securely locks the case in alignment with the pilot and cutter. The trimmer features both coarse and fine trim length adjustments, with a fine adjustment bushing that has .001" micrometer markings.The universal shell holder accommodates case head diameters from .250" to .625" rims, making it suitable for a wide range of cartridges, from the 5.7x28 to the long-range .338 Lapua Magnum and heavy-hitting .45-70 Government. The kit comes with nine pilots: .22, .24, .25, .27, .28, .30, .35, .44, and .45.