Interchangeable Head Torque Wrench 360 in-lb to 1 800 in-lb 41 N-m to 204 N-m Drive Size 1/2 in x 1 1/8 in Custom Preset Custom Preset 16 in Extended Data Testing Yes NIST Clockwise Accuracy +/-4 Percent Counterclockwise Accuracy Not Rated Alloy Steel Chrome Ergonomic Knurled