For controlled fastener tightening. Built-in ratchet· Adjustable working range· Sturdy, varnished steel tube construction with galvanised ratchet and high-grade plastic parts· Tactile and audible release signal· Classified in accordance with DIN EN ISO 6789:2003 Type II Class A*· Release accuracy ± 3 % from pre-set scale value· Ergonomically-shaped, 2-c