Ingersoll/Rand
Ingersoll/Rand 5AJST4 Air Drill Pistol 1/4 in 500 RPM 20-80 in-lb
A pneumatic pistol drill delivering 20–80 in-lb torque at 500 RPM with variable-speed trigger control
- TypeAngle Drivers
- Delivers up to 80 in-lb torque for demanding fastening tasks
- Free speed of 500 RPM balances power and control
- Variable-speed trigger allows precise speed adjustment
- Composite housing with aluminium handle reduces weight to 2 lb
- Operates at 90 psi with 4.25 CFM average air consumption
1/4 in Pistol Air Drill
The Ingersoll/Rand 5AJST4 is a new pistol-style air drill with a 1/4 in chuck. It delivers a free speed of 500 RPM and a torque range of 20 to 80 in-lb. The tool requires 90 psi operating pressure and a minimum 1/4 in hose. Variable speed control is managed through the trigger.
Ideal for precision fastening
Suited for technicians needing controlled, low-speed drilling and fastening in tight spaces. The composite housing and aluminum handle keep weight to 2 lb for extended use. Not for buyers who need high-speed material removal or torque output above 80 in-lb.
500 RPM free speed decides fit
At 500 RPM this drill is built for precision work rather than rapid hole cutting. Average air consumption is 4.25 CFM at a 15-second run time, rising to 17.0 CFM at full load. Verify your compressor can sustain 90 psi at the required flow before purchase.
Highlights
- Delivers up to 80 in-lb torque for demanding fastening tasks
- Free speed of 500 RPM balances power and control
- Variable-speed trigger allows precise speed adjustment
- Composite housing with aluminium handle reduces weight to 2 lb
- Operates at 90 psi with 4.25 CFM average air consumption
Specifications
| Brand | Ingersoll-Rand |
|---|---|
| Model | 5AJST4 |
| Type | Angle Drivers |
Questions about this item
What hose size and pressure does the 5AJST4 require to run at 500 RPM?
The drill needs a minimum 1/4 in hose and 90 psi supply pressure to reach its rated free speed.
Which step is most often missed when connecting the trigger throttle to the air supply?
Installers frequently forget to fit an inline filter-lubricator before the tool, causing premature wear on the trigger mechanism.
How often should the composite housing and aluminum handle be inspected for cracks or fatigue?
Check the housing and handle at every 15-second duty-cycle interval during heavy use, and replace if any stress marks appear.
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