The RCBS Trim Pro-2 Power Case Trimmer has the same improved spring-loaded universal shell holder as the manual trimmer, but with a high-torque, low-RPM motor. The self-feeding spring-fed cutter makes case trimming easy and accurate. No pushing or feeding pressure is required, leaving hands free to do other case preparation tasks such as chamfering, deburring or primer pocket cleaning. The positive locking handle and integral power switch makes operation simple and safe. Note: Cases with rim diameters larger than .625-inch must be trimmed on the 90352 High Capacity Trimmer.