Along with max torque capacities from 1,000–6,000 lb-ft, PTW series features low-friction planetary gearbox design that eliminates hammer action, ergonomic design with weight-distributing handle, and low-noise (<85 dba) air motor. These square drive wrenches, capable of continuous rotation that eliminates time needed to re-stroke tools, carry CE certification and are designed for safety, reliability, and operational simplicity. Latter requires operator to set air pressure and pull trigger.