SPEEDAIRE
SPEEDAIRE 21AA59 air ratchet wrench 1/4 in drive 30 ft-lb 350 RPM
A 1/4 in drive air ratchet delivers 30 ft-lb torque at 350 RPM for general-duty fastening
- Lightweight handling with 0.9 lb tool weight
- 30 ft-lb torque for reliable fastening
- 350 RPM free speed for efficient operation
- 1/4 in square drive with ball detent retainer
- Rear exhaust directs air away from work area
1/4-Inch Drive Air Ratchet
The SPEEDAIRE 21AA59 is a 1/4-inch drive air ratchet wrench built for general-duty fastening. It delivers 30 ft-lb of torque at a free speed of 350 RPM. The tool operates on compressed air at 90 psi and requires a minimum hose size of 3/8 inch. It weighs 0.9 lb and measures 5 1/4 inches in overall length.
Suited for Tight Fastening Jobs
Mechanics working in confined engine bays or on small fasteners will appreciate the compact 9/16-inch side-to-center dimension and ball-detent retainer. The rear exhaust directs air away from the workpiece. Buyers who need higher torque for heavy suspension bolts or a larger drive size for impact sockets should look at a different tool class.
Steady Output at Rated Pressure
At the rated 90 psi the wrench maintains consistent speed and torque for repetitive assembly tasks. Air consumption runs at 16 cfm, so the compressor must sustain that flow during extended use. Operating pressure can drop to 50 psi for lighter work, though torque will fall accordingly. The tool contains chemicals listed under California Proposition 65.
Highlights
- Lightweight handling with 0.9 lb tool weight
- 30 ft-lb torque for reliable fastening
- 350 RPM free speed for efficient operation
- 1/4 in square drive with ball detent retainer
- Rear exhaust directs air away from work area
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
What compressor capacity do I need to run the SPEEDAIRE 21AA59 at its rated 16 cfm?
You need a compressor that can deliver at least 16 cfm at 90 psi, with a minimum 3/8 in hose and a 1/4 in NPT female fitting on the tool inlet.
Will the 1/4 in square drive on this ratchet accept the impact sockets I already own?
Yes, any standard 1/4 in drive socket with a ball-detent groove will lock onto the retainer; the tool produces 30 ft-lb of fastening torque.
How can I confirm the wrench is hitting its 350 RPM free speed after I connect the air line?
Set the regulator to 90 psi, pull the trigger with no load, and listen for the motor to reach a steady high-pitched whine — that indicates the rated free speed.
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