This durable, hard-wearing 3/4in Drive, heavy-duty torque wrench retains a & plusmn4% accuracy. With a comfortable handle that has been designed for controlled pulling effort at all settings and a convenient push-through user-replaceable square drive. Complies with ISO 6789. The Britool BRIHVT5000 has the following specification Torque Range 140-560Nm (100-410lbft). Overall Length 1130mm (44.1/2in). Drive 3/4in Square. Supplied with calibration certificate