Expert Quality, carbon steel with hardened and tempered jaws. Continuous crimping at preset tension ensures accurate crimp. Chemically blacked finish with PVC grips. Suitable for crimping insulated terminals as follows:- red channel: 0.5-1.00mm², blue channel: 1.5-2.5mm² and yellow channel: 4.0-6.0mm². Supplied complete with 590 (approx.) mixed pre-insulated terminals in a steel storage case with insert. Display packed.