Ratchet insert made of chrome-vanadium steel, reversible, 60 teeth, suitable for torque wrenches with square socket, 9x12 mm. The connection between the torque wrench and the ratchet insert is ensured by a spring-loaded retaining pin. When using the torque wrench - article no. 11 5110, no adjustment of the pitch on the torque wrench is necessary. Can only be used in combination with - article no. 11 5110. 1/2'