Steel: CrV50Bv30 45-47 HRC Chrome plating D1: 26 mm D2: 23 mm Length: 78 mm "The Case of Technology" twelve-point socket wrenches are made of chrome-vanadium steel using cold stamping and subsequent heat treatment. The socket wrenches are hardened and protected against corrosion by chrome plating. They are not afraid of high and prolonged loads. The twelve-point profile provides greater freedom for positioning the socket wrench on fasteners. The angle of rotation of the wrench between the faces of the fastener is 30°. It is used in work with twelve-point and hexagonal fasteners. The elongated shape of the wrench allows you to work with fasteners on relatively high studs or with threaded parts with a deep fit. A special knurled pattern on the base of the wrench improves gripping characteristics and prevents slipping in hands. You can also purchase a set of 12-point extended SAE socket wrenches 1/2'' or a tool set with 1/2'' socket wrenches.