Professional quality ratchet crimping tool set which includes five pairs of die sets suitable for a wide range of electrical terminals and connectors. The crimping tool has a steel frame with comfortable, contoured grips and a ratchet release leverDie sets quickly interchange and are held securely in the toolGives a professional and secure connection.Die set applications: A1 Die for insulated heat shrink butt connector (0.5 10mm), A2 Die for insulated quick-disconnect connector (0.5 6mm), A3 Die for miniature insulated connector (0.1 1.5mm), A4 Die for insulated 90º flag connector (0.5 2.5mm), A5 Die for closed end insulated connector (0.5 6mm) Supplied in a durable, plastic moulded storage case