Use: Controlled tightening and verification of tightening values, For use in almost all industrial manufacturing areas, Dual scale. Dial provides effective measurement in Metric and Imperial torque units in both directions, delivering flexibility and minimising tool investment, Features: Dial-indicating torque wrench with dual scale and slave pointer, 1/4", 3/8", 1/2", 3/4" or 1" double square drive with ball lock for controlled right and left tightening, Versatile usage. Use for Maintenance, Repair, Assembly and Quality Control, For controlled screw tightening and torque measurements, Display accuracy: +/- 4 % tolerance of the indicated value, Acc. to DIN EN ISO 6789, traceable to national standards, With dual scale in N·m and lbf·in or lbf·ft double-tinted clearly readable face, 5 % overload of the maximum value, Housing made of light, robust special aluminium construction - painted silver-grey, Black, non-slip rubber handgrips, Model No. ADS 4 to No. ADS 40: EPA (Electrostatic Protected Area) compliant, for use in electrostatically sensitive applications, With audio-visual signal, Test certificate acc. to DIN EN ISO 6789