Controlled tightening of screws in the range of 1 - 850 N-m / 0.75 - 630 lbf-ft (guide values screws M3-6.9 to M24-8.8,M30-5.6),adjustable,audible and tactile switch-off and robust torque spanner with integrated ratchet with square drive for industry and crafts,Design: classified in accordance with DIN EN ISO 6789:2003 type II class A, with a manufacturer's certificate
Accuracy +/- 3 % of set scale value
Exceeds the directive of the standard (+/- 4 %),for controlled clockwise and anticlockwise tightening,1/4",3/8",1/2" mushroom head-switching square with ball lock
From 3/4" through-hole square with ball lock,robust,painted tubular steel construction,with zinc-plated ratchet and high-quality plastic parts,ergonomically shaped,handy,black plastic handle with calibration aid,double scale N-m and lbf-ft under a viewing window with magnifying glass effect,with micrometer scale for N-m main scale for setting scale intermediate values,automatic switch-off using audible and tactile signal,ergonomic system for setting the torque