The E-ZEE Trim Hand Case Trimming System. The system works with any popular brand of shell holder and uses special trimming pilots that are factory CNC machined to the precise cartridge length. When each trim-to length pilot is installed on the system's cutter head, it bottoms out and stops cutting action when the correct overall cartridge length is reached. In addition, the system includes a power adapter that allows the use of a standard electric drill or drill press to speed case trimming.