The body is made of 3Cr13 material, which is not easy to rust.The hardness of general heat treatment and special heat treatment of leaf edges is HRC 55 2.Function: Clamping, Stripping, Cutting, Branching, Rolling, Opening, Pulling Productsare suitable for electrical decoration, electrical maintenance, car wiring, etc. StrippingAWG 18,14,12,10,6/1.0,1.5,2.0,5, 4.0 mm2 25 mm2 cable Open the cable sleeve, 8 in 1 electrical test function of 2 x 1.5 mm with split coating Power test range: 12-250 V AC and DCTouch the power cable: the traffic lights are on and the horn sounds Contactthe neutral line: green light is on, horn is not soundingTest connectivity: green light is on when line is connected; Light turns off when line is disconnectedPlease note that non-insulated tools cannot be used while powered. It has the function of an electric test pen and can only be used in an emergency. When using it, your palm should touch the sensor piece at the end of the handle. The head is not insulated, beware of electric shocks!Packing list: 1 x special electric wire stripping