Steel: CrV50Bv30 45-47 HRC Chrome-plated D1: 20 mm D2: 22 mm Length: 78 mm The "Delo Tekhniki" twelve-point socket wrenches are made of chrome-vanadium steel using cold stamping with subsequent heat treatment. The socket wrenches are hardened and protected from corrosion by chrome plating. They can withstand high and long-lasting loads. The twelve-point profile provides greater freedom for positioning the wrench on the fastener. The angle of rotation between the faces of the fastener is 30°. It is used for working with twelve-point and hexagonal profiles of fasteners. The elongated shape of the wrench allows for work with fasteners on relatively high studs or with deeply seated threaded parts. The special rifled texture on the base of the wrench improves the gripping characteristics and prevents slipping in the hands. You can also purchase a set of 12-point extended sockets 1/2'' or a tool set with socket wrenches 1/2''.