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Silver inline air screwdriver with 1/4 inch hex quick-change chuck and push-to-start trigger

Ingersoll/Rand

Ingersoll/Rand 1RPNS1 air hand screwdriver 2.7 to 30.1 in-lb

SKU CH-8ZMR-Z3MSJ MPN 1RPNS1

Air screwdriver with precision shut-off clutch delivering 2.7 to 30.1 in-lb torque at 1,000 RPM

  • Product typeHex Drive Bits
  • Precise torque control with 2.7 to 30.1 in-lb range
  • Fast operation at 1,000 RPM free speed
  • Quick bit changes via 1/4 in hex drive
  • Efficient air use at 5.00 CFM average
  • Durable build rated for industrial duty cycle

In-line air screwdriver for precision torque

The Ingersoll/Rand 1RPNS1 is an in-line pneumatic screwdriver built for assembly and repair tasks that require repeatable torque between 2.7 and 30.1 in-lb. Its precision shut-off clutch stops automatically at the set value, reducing the risk of over-tightening fasteners in production or maintenance environments.

Upgrades from adjustable clutch or manual drivers

This model replaces tools that rely on operator feel or adjustable-slip clutches when consistent torque repeatability matters. The jump is worth it for high-volume work where a shut-off clutch cuts rework and protects threads, especially at the 30.1 in-lb maximum rating.

Check air supply and bit compatibility before

Verify the shop can deliver 90 psi at the tool with at least 5.00 average CFM during a 15-second run and 13.0 CFM at full load through a minimum 1/4 in hose and 1/8 in NPT inlet. The 1/4 in hex quick-change chuck accepts standard bits, and the 8 3/4 in overall length should fit the intended work envelope.

How it compares

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

Price $1,121.99
Pricier than about 98% of the 415 comparable items (median $11.99).

Specifications

Product
Brand nameIngersoll-Rand
Model name1RPNS1
Product typeHex Drive Bits

Questions about this item

What air inlet fitting does the 1RPNS1 require?

The tool uses a 1/8 in NPT air inlet and needs a minimum 1/4 in hose at 90 psi supply pressure.

How do I start the screwdriver and avoid accidental runs?

It has a push-to-start throttle; press the bit against the fastener to engage the motor and release to stop.

When should I service the shut-off clutch?

Check clutch calibration after heavy use; the precision shut-off is factory-set for 2.7 to 30.1 in-lb torque range.

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