Chrome molybdenum steel. 80 cutting edge angle. Manufactured and tested according to the standard IEC 60900 for work under voltage up to 1000 volt (by qualified electricians). Heavy duty model with pipe grip and serrated grip surfaces. With ergonomically designed two component handle sleeves. Length: 175mm Cuts Piano Wire: 1.8mm Cuts Steel Wire: 2.0mm Cuts Iron Wire: 3.8mm