Use: Controlled screw tightening in the range of 110 - 550 Nm / 80 - 405 lbfB7ft, Adjustable, releasing and sturdy tubular torque wrench with spigot end for industry and the trades, Features: Classified according to DIN EN ISO 6789-2:2017 Type II Class A, incl. traceable test certificate, calibrated to a maximum permissible deviation of +/- 3 % and thus more precise than the +/- 4 % required by the standard, For controlled bi-directional tightening, Sturdy, varnished tubular steel construction, with phosphated spigot end (C 16 mm or C 22 mm) and high-grade plastic parts, Ergonomically shaped, convenient black plastic handgrip with calibration aid, Dual scale Nm and lbfB7ft below a window with a magnifying-glass effect, With micrometre scale for main Nm scale for setting interim values, Release system triggers a tactile and audible signal, Ergonomic system for torque adjustment, Working caliber gauge: 56 mm (C 22 mm), Operation only with end fittings with standardised depth gauges, otherwise inaccuracies can arise, Depending on the application, access is possible from the front (e.g. open-end fitting) or side (e.g. reversible ratchet and socket).