Use: · Controlled screw tightening in the most widely used range of 5 - 850 N·m / 3.7 - 550 lbf·ft · Adjustable, releasing and sturdy tubular torque wrench with spigot end for industry and the trades Features: · Classified to DIN EN ISO 6789:2017 Type II Class A, with a factory certificate. Working accuracy: +/- 3 % tolerance of scale set torque. The specification of the standard (+/- 4 %) is exceeded. · For controlled bi-directional tightening · Sturdy, varnished tubular steel construction, with phosphated spigot end (Ø 16 mm or Ø 22 mm) and high-grade plastic parts · Ergonomically shaped, convenient black plastic handgrip with calibration aid · Dual scale N·m and lbf·ft below a window with a magnifying-glass effect · With micrometre scale for main N·m scale for setting interim values · Release system triggers a tactile and audible signal · Ergonomic system for torque adjustment · Factory depth gauges: 32 mm (Ø 16 mm) or 56 mm (Ø 22 mm) · Operation only with end fittings with standard