Especially suitable for: Machinery and plant engineering, Cable cars, lifts and masts, Heavy industry, construction sites, Bridge construction, Shipbuilding, aircraft and railway construction, Refineries, plastics industry, Power plants of all kinds, Features: Mechanical hand torque multiplier for controlled screw tightening and unloosening screw connections, With a two-stage planet gear, High-performance aluminium housing, Models with 1:16 gear ratio, DVV-40ZRS model with anti-wind-up ratchet (RS), With non-destructive overload protection "Slipper" to protect the gearbox, right and left hand, Z-form, offset reaction arm depending on model made of chrome-vanadium steel, Guaranteed accuracy: Better than +/- 3 % tolerance, To operate with a suitable torque wrench, 2 models with maximum load in the range of max. 4000 Nm, Output square with hole for Impact sockets with locking pin and ring