CrimpSupply.com offers a ratchet crimp tool designed to allow users to crimp 22-8 gauge heat shrink terminals that are commonly used in environments where sealing out moisture is a requirement, such as in the electrical systems of emergency services vehicles. The company said the design prevents the tool from cutting or puncturing the heat shrink portion of the terminals due to its wider crimping surface. The tool features a non-slip handle, quick release, pressure adjustment wheel, and four crimp zones clearly marked by color coding and wire size and weighs 1.4 lbs.