Only 139mm length.
Great mini one handed operation.
Butterfly throttle.
Twin dog hammer type

Square Drive: 3/8''
Bolt Capacity: 3/8'' (10mm)
Torque Range: 5-50 ft-lb / 7-68 Nm
Max Torque at 5 seconds: 75 ft-lb / 102 Nm
Free Speed: 11000 RPM
Air Requirement: 2.3 CFM / 90 PSI / 1/4'' Inlet
Overall Length: 139mm
Net Weight: 0.5kg
Sound Pressure: 91dBA
Vibration Level: 3.6m/s²