Heavy gauge carbon steel hardened, tempered and chemically blacked. Moulded grip handles.|Functions: Crimping insulated terminals size: 1.5mm (red), 2.5mm (blue) and 6.0mm (yellow). Crimping ignition terminals Wire cutting Wire stripping: 0.75, 1.0, 1.5, 2.5, 4.0 and 6.0mm Shears bolts size: 2.6, 3.0, 3.5, 4.0 and 5.0mm.