Interchangeable Low Profile Hexagon Cassette Product Type Torque Wrench Cassette Tool Series HLP Nominal Torque (N-m) @ 10 000 psi 2 089 N-m Nominal Torque (ft-lb) @ 10 000 psi 1 541 ft-lb Minimum Hex Size (in) 1 1/4 in Maximum Hex Size (in) 1 1/4 in Minimum Hex Size (mm) 32 mm Maximum Hex Size (mm) 32 mm Hex Size 1 1/4 in Compatible Tool Series HMT Series Hydraulic Torque Wrench Drive Compatible Manufacturer Drive Unit Number HMT1500 Compatible Grainger Drive Unit Number 61MP46