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SPEEDAIRE 21AA44 air impact wrench pistol grip 1/4 NPT inlet

SPEEDAIRE

SPEEDAIRE 21AA44 air compressor 16 cfm 90 psi 75 ft-lb

SKU CH-ZSMZ-206KH

Air-powered impact wrench delivers 75 ft-lb torque at 90 psi with 16 cfm consumption and 12,000 RPM free speed

  • Delivers 75 ft-lb breakaway torque for tough fasteners
  • Runs at 12,000 RPM free speed for rapid work
  • Consumes 16 cfm at 90 psi for efficient air use
  • 1/4 in NPT inlet fits standard shop lines
  • 76 dB impact sound keeps noise manageable

1/4 in NPT air impact wrench

The SPEEDAIRE 21AA44 is a pistol-grip air impact wrench with a 1/4 in NPT female inlet. It delivers breakaway and fastening torque of 75 ft-lb at 90 psi air pressure. The tool is rated for general duty use and suits technicians who need a compact air-powered driver for routine fastener work.

Sustained load behaviour

At 16 cfm air consumption the tool requires a compressor that can maintain flow during extended runs. Free speed reaches 12,000 RPM with 2,000 impacts per minute, and the bottom exhaust directs air away from the operator. Impact sound level measures 76 dB during continuous operation.

Practical limits of the air interface

Operating pressure range spans 50 psi to 90 psi with a 3/8 in minimum hose size to avoid flow restriction. The wrench accepts bolts up to 3/8 in capacity and is not rated for explosive environments. California Proposition 65 warnings apply for cancer and reproductive harm.

Highlights

  • Delivers 75 ft-lb breakaway torque for tough fasteners
  • Runs at 12,000 RPM free speed for rapid work
  • Consumes 16 cfm at 90 psi for efficient air use
  • 1/4 in NPT inlet fits standard shop lines
  • 76 dB impact sound keeps noise manageable

Specifications

BrandSPEEDAIRE

Questions about this item

How loud is the 76 dB impact sound level when running all day?

The tool produces 76 dB at the exhaust, which is comparable to a busy office; prolonged use in a confined space may require hearing protection.

What minimum hose size and air supply are needed for the 16 cfm consumption?

A 3/8 in hose fed by a compressor delivering at least 16 cfm at 90 psi is required for full performance.

Will the 1/4 in NPT inlet connect directly to my older 1/4 in quick-connect fittings?

The inlet is 1/4 in NPT female, so it accepts standard 1/4 in NPT male plugs; quick-connect bodies with NPT threads will thread straight on.

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