This Norbar NorTorque® Adjustable Dual Scale Ratchet Torque Wrench is supplied with a 1/2in square adaptor. It has the following specification:
Drive: 3/8in squareAccuracy: ±3%Range: 12-60Nm (10-45 lbf.ft)Ratchet Diameter: 36mmLength: 328mmWeight: 0.7kg