The Sealey AK629 Torque Multiplier with a maximum rated output of 1000Nm The Sealey AK629 is a Torque Multiplier with a robust construction with 1/2\"Sq drive female input and 3/4\"Sq drive male output. The multiplier is compatible with a wide range of drive tools including torque and ratchet wrenches. Multiplication is achieved by a planetary gear train with a gear ratio of 1:3.3. Features: Adjustable length reaction arm makes it ideal for limited access use Multiplication achieved by planetary gear train with a gear ratio of 1:3.3 Robust construction with 1/2\"Sq drive female input and 3/4\"Sq drive male output Compatible with a wide range of drive tools including torque and ratchet wrenches One of a comprehensive range of Premier Hand Tools, suitable for daily professional use Specification: Model No: AK629 Length: 420-450mm Output Drive: 3/4\"Sq (Male) Input Drive: 1/2\"Sq (Female) Maximum Rated Input: 300Nm(225lb.ft) Maximum Rated Output: 1000Nm(750lb.ft)