Use: Controlled screw tightening in the range of 15 - 55 Nm, 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, traceable to national standards, Precision mechanism slips very noticeably and audibly ("click") when the pre-set value is achieved - over-tightening is not possible, Automatic resetting to the starting position, Lightweight, but robust and corrosion-resistant construction design, Very convenient non-slip rubber handgrip, The pre-setting can be made at the factory or by the user on suitable torque testers, If fixed setting at the factory is desired is required, please state the Nm value when ordering (price on request), EPA-conformant (Electrostatic Protected Area), for use in sensitive electrostatic applications, Scope of delivery: Torque wrench type TSN SLIPPER, Special adjusting key for changing the pre-set torque value, Test certificate acc. to DIN EN ISO 6789, Delivery in sturdy cardboard packaging