Adjustable torque wrench with square drive and integrated ratchet function for controlled clockwise and counterclockwise tightening, for all industrial production areas, maximum precision even with heavy continuous use, robust, powder-coated tubular steel construction, with galvanized ratchet, the buckling mechanism with sliding roller guarantees an acoustic and tangible trigger signal, trigger accuracy ± 3% tolerance of the set scale value, delivery including test certificate according to DIN EN ISO 6789, in a plastic box, in a cardboard box