Interchangeable Low Profile Hexagon Cassette, Product Type Torque Wrench Cassette, Tool Series HLP, Nominal Torque (N-m) @ 10,000 psi 4,804 N-m, Nominal Torque (ft-lb) @ 10,000 psi 3,543 ft-lb, Minimum Hex Size (in) 3 1/8 in, Maximum Hex Size (in) 3 1/8 in, Minimum Hex Size (mm) 80 mm, Maximum Hex Size (mm) 80 mm, Hex Size 3 1/8 in, Compatible Tool Series HMT Series Hydraulic Torque Wrench Drive, Compatible Manufacturer Drive Unit Number HMT3500, Compatible Grainger Drive Unit Number 61MP47