The compact and easy to store torque multiplier is essential for all HGV’s, agricultural machinery and building equipment. This multiplier wrench for truck adopts high-efficiency planetary shifting as main drive. It features small dimensions, lightness, durability and large gear ratio and has a large output torque can be produced by inputting less force. 3/4″ Drive. 1:64 Ratio. Supplied with 3 sockets: 30, 32 7 33mm. Extension bar.