Descrizione Lee Zip Trim Lee Zip Trim The Lee Zip Trim is a quick and economical way to keep cases trimmed within SAAMIspecification. The Zip Trim utilizes Lee Case length gages (not included) to trim to the appropriate length and can be used not only trim the case to the required length but it can also be used to chamfer, deburr and polish cases. All the reloader has to do is pull the recoil cord and the Zip Trim spins the case. As the RPM increases at the end of each cut torque automatically decreases.