Pin less type.
Lightest 2500+ ft-lb impact wrench in the world.
Mighty spring in the cylinder increases the air efficiency

Square Drive: 1''
Bolt Capacity: 1-9/16'' (39.7mm)
Torque Range: 200-2000 ft-lb / 271-2710 Nm
Max Torque at 5 seconds: 2500 ft-lb / 3390 Nm
Free Speed: 5000 RPM
Air Requirement: 15.9 CFM / 90 PSI / 1/2'' Inlet
Overall Length: 370mm
Net Weight: 11kg
Sound Pressure: 100dBA
Vibration Level: 6.4m/s²