Mini air ratchet wrench has a 3/8 inch square drive head of which inner size is 1 /4 inch. It not only can install 1/4 inch screwdriver bits, but also fits for different sizes of sockets. The stubby pneumatic ratchet wrench is used for repairing automobiles and motorcycles or other mechanical equipment to screw or unscrew the fasteners in narrow spaces.
- 2 in 1 air ratchet wrench, 3/8" square drive head with 1/4-in inner hole, for use with various sizes of sockets and 1/4-in screwdriver bits, best for loosening and tightening fasteners.
- Provide 25 ft/lb max. torque and 250rpm free speed.
- Twin pawl mechanism. Forward/reverse switch in the ratchet head, easy to change the direction.
- 360 degree air exhaust provides high efficiency.
- Long throttle lever makes it easy to trigger.
- Durable alloy steel ratchet head with black nickel plating, high hardness and corrosion and wear resistance.
- Anti-slip handle with frosted design for comfortable grip.
- Mini size design air ratchet, especially suitable for hard-to-reach places.
||3/8 inch (9.5mm)
||1 /4 inch (6.35mm)
|Air Inlet Size
||1/4 inch (6.35mm)
||25 ft/lb (34Nm)
|No Load Speed
||28mm * 152mm
Tips: Air Ratchet Wrench Working Principle
Air ratchet wrenches are popular and practical air hand tool for tightening and loosening lug nuts and bolts, commonly used in automotive and aerospace industries, manufacturing, construction and other heavy industries.
Pneumatic ratchet wrenches obtain power from high pressurized gas (between 75 PSI and 120 PSI) and turn it into a powerful and controllable torque via a series of turbines, gearboxes and ratchets. The air pressure generated by compressed gas is converted into mechanical energy via a small air turbine located at the bottom of handle. High pressure air pushes against hard vanes parallel to the turbine’s axis to produce torque. When you press the starting switch, compressed air will enter into the air inlet, and then the compressed air will push the vanes for rushing toward the outlet, thus drive the operation of the pneumatic ratchet wrench.