For use on assembly lines or in series production. No adjustment scale; therefore, adjustment using testing equipment is required, e.g., STAHLWILLE testing equipment No. 7707 W, SmartCheck, or calibration equipment No. 7794, No. 7706. Snap-in mounting for interchangeable tools (755/4-30) double stop signal exceptionally lightweight and easy to use handle and shaft made of square steel tubing any force applied to the tool after "clicking" or applied in the opposite direction of the current function (up to the maximum range of the wrench) does not affect the trigger mechanism and cannot cause damage to it Tightening in a counterclockwise direction thanks to interchangeable tools that can be fitted upon request with a preset cut-off value (10% surcharge) Deviation value ± 4%.