Interchangeable Head Torque Wrench Kit 10 N-m to 80 N-m 7 ft-lb to 59 ft-lb 0.5 ft-lb 0.5 N-m Drive Size 16 mm 17 mm 21 mm 22 mm 24 mm 26 mm 27 mm 29 mm 0.5 ft-lb 0.5 N-m 16 in Extended Data Testing Yes BS EN 26789 ISO 6789 ASME B107.14M DIN 3122 Clockwise Accuracy +/-4 Percent Counterclockwise Accuracy +/-4 Percent Aluminum Powder Coated Ergonomic