Use: Controlled screw tightening in the range of 250 - 850 Nm / 185 - 630 lbfB7ft, Adjustable, releasing and sturdy tubular torque wrench with integrated ratchet and with square drive for industry and the trades, Features: Classified as per DIN EN ISO 6789-2:2017 Type II Class A; adjusted to a maximum permissible +/-3 % deviation and thus with a greater precision than the standard-stipulated +/-4 %, Incl. traceable test certificate, For controlled bi-directional tightening, 3/4" square socket and pin retention, Sturdy, varnished tubular steel construction, with zinc-plated ratchet head and top-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