Quick changing ratcheting tool with 9 die sets for most popular auto terminal crimping applications. Quick and easy die set change with the press of a lever. Ratcheting action ensures a perfect crimp every time. Supplied in a durable blow molded case. Crimping Tool has a steel frame with comfortable cushion grips. Set includes die sets: #18921 for insulated terminals 22-10AWG, #18922 for non-insulated open barrel connectors 22-10 AWG including weatherpack terminals, #18923 For fully insulated quick disconnect terminals with thinner wire barrels 22-10 AWG, #18924 For non-insulated terminals 22-8 AWG, #18925 For miniature insulated rings, spade and butt splices 26-16 AWG, #18928 For RG-6 and RG-59 coaxial cable, #18929 For 8mm and 8.5mm spiral core spark plug wire. Strips the insulation, crimps the spiral core to the spark plug terminal and crimps the terminal to the spark plug wire insulation. #18937 Fro 30-18 AWG non insulated open barrel terminals. 18938 For 22-14 AWG insulated flag terminals.