TE Connectivity Double Action Crimping Tool for SOLISTRAND Terminals CERTI-CRIMP Premium Grade double action crimping tool for making reliable, high quality SOLISTRAND and STRATO-THERM terminations onto stranded wire with a size range of 22-10 AWG. This crimp tool consists of two crimping jaws containing crimping chambers marked with the wire size range. This crimping tool tool uses a CERTI-CRIMP tool ratchet which stays locked until the handles are completely closed assuring that the terminal is fully crimped. The handles of this CERTI-CRIMP double action crimping tool have an ergonomic, non-slip design.