SPEEDAIRE
SPEEDAIRE 21AA61 Air Ratchet Wrench 3/8 in Drive
A 3/8 inch drive air ratchet delivering 20 ft-lb torque at 240 RPM for general-duty fastening
- 3/8 in drive fits common sockets
- 240 RPM free speed speeds bolt removal
- 20 ft-lb torque handles general-duty fastening
- 12 cfm air consumption matches typical compressors
- 1 lb weight reduces operator fatigue
3/8 in Drive Air Ratchet Wrench
The SPEEDAIRE 21AA61 is a pneumatic ratchet wrench with a 3/8 in square drive built for general duty fastening. It runs on compressed air at 90 psi with a free speed of 240 RPM and delivers 20 ft-lb of fastening torque. The tool weighs 1.1 lb and measures 6 3/8 in overall length for access in tight spaces.
Upgrade from manual ratchets and larger impact tools
This air ratchet replaces hand ratchets when repetitive bolt work demands speed and reduces fatigue on assembly lines or in automotive bays. The jump is worth it when the 20 ft-lb torque range covers the fasteners used daily and the 12 cfm air supply is available. It is not for jobs requiring higher torque or continuous heavy-duty impact cycles.
Practical limits of 1/4 in NPT air supply
The tool connects via a 1/4 in NPT female inlet and needs a minimum 3/8 in hose to deliver the 12 cfm consumption at 90 psi. Operating pressure must stay between 50 psi and 90 psi; pressure drops below the minimum will cut torque and speed. Rear exhaust directs air away from the workpiece but adds length behind the head.
Highlights
- 3/8 in drive fits common sockets
- 240 RPM free speed speeds bolt removal
- 20 ft-lb torque handles general-duty fastening
- 12 cfm air consumption matches typical compressors
- 1 lb weight reduces operator fatigue
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
What size air hose and inlet fitting does the 21AA61 ratchet require?
The tool needs a minimum 3/8 in hose and connects through a 1/4 in NPT female air inlet.
How do I install the ratchet and what step is commonly missed?
Attach a 3/8 in hose to the 1/4 in NPT inlet, set the regulator between 50 and 90 psi, add a few drops of air-tool oil into the inlet before first use, then secure sockets with the ball-detent retainer.
What maintenance will the 21AA61 need over time?
Lubricate daily with pneumatic-tool oil through the inlet, drain the compressor tank regularly to keep moisture out, and replace the ball-detent retainer if sockets start to release unexpectedly.
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