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Silver in-line pneumatic screwdriver with 1/4 inch quick-change hex chuck

Ingersoll/Rand

Ingersoll/Rand 1RPQS1 air hand screwdriver 1/8 in FNPT in-line 500 RPM 45.1 in-lb

SKU CH-MJJ9-1X07N MPN 1RPQS1

Air screwdriver with precision shut-off clutch, 500 RPM free speed, and 2.7 to 45.1 in-lb torque range

  • Product typeHex Drive Bits
  • Precision shut-off clutch prevents over-tightening
  • 500 RPM free speed for efficient fastening
  • 7 to 45.1 in-lb torque range covers varied tasks
  • 1/4 in quick-change hex bit holder speeds bit swaps
  • In-line body style improves control in tight spaces

In-line air screwdriver for precision assembly

The Ingersoll/Rand 1RPQS1 is an in-line air screwdriver built for precision assembly work. It delivers a soft-draw torque range of 2.7 to 45.1 in-lb with a precision shut-off clutch for repeatable fastening. A 1/4 in hex quick-change holder accepts standard bits. The tool suits production lines and maintenance tasks needing controlled torque.

Thermals noise and air consumption

At free speed the driver runs at 500 RPM while drawing 5.00 average CFM during a 15-second run cycle. Full-load demand rises to 13.0 CFM at the required 90 psi supply pressure. The in-line body keeps the motor aligned with the fastener, reducing vibration transmitted to the operator. Noise level is typical for industrial-duty air tools of this class.

Build integration needs and clearance

A 1/8 in FNPT air inlet connects to a minimum 1/4 in hose for adequate flow. The 8 3/4 in overall length fits into tight work envelopes where pistol-grip tools cannot reach. Push-to-start actuation allows single-handed operation without a separate trigger. Reversible operation clears jammed fasteners without changing tools. The unit requires a clean, lubricated 90 psi air supply.

How it compares

Measured against everything we stock in Screwdrivers, Nut Drivers & Hex Keys, at today’s prices. Recalculated every night.

Price $795.99
Pricier than about 95% of the 415 comparable items (median $11.99).

Specifications

Product
Brand nameIngersoll-Rand
Model name1RPQS1
Product typeHex Drive Bits

Questions about this item

How do I connect the 1/8 in FNPT air inlet and what step is often missed?

Attach a 1/4 in minimum hose to the 1/8 in NPT inlet, set supply to 90 psi, and verify 5.00 CFM at 15 second run time; the step often missed is confirming compressor delivery at the tool, not just at the tank.

Which parts need periodic replacement on the 1RPQS1?

The 1/4 in quick-change hex bit holder wears with use; air-motor vanes and shut-off clutch seals should be inspected per Ingersoll-Rand service intervals, and the inlet filter screen cleaned to maintain 13.0 CFM full-load flow.

What limit appears first during continuous driving at 500 RPM?

The precision shut-off clutch caps torque at 45.1 in-lb, so sustained hard joints hit that ceiling before free-speed or air-supply limits become the bottleneck.

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