Use: Controlled screw tightening in the range of 5 - 25 N · m, Serial / production-line, Extremely long-term work, Features: Pre-set production torque wrench - without scale, 3/8" square drive with ball lock, With integrated ratchet-function for controlled clockwise tightening, Working accuracy: +/- 4 % tolerance of set torque, Acc. to DIN EN ISO 6789,