Built for controlled fastening on light assembly joints, the Cleco 19RAA04AM2 pneumatic collar reversible angle nutrunner pairs a compact right-angle head with a Clecomatic clutch shut-off system, which stops the tool when the preset torque is reached. With a 12 - 42 in-lb torque range, 1/4" square drive, and 950 RPM free speed, this 19 Series tool gives production teams a balance of fastening control, access, and rundown speed for small threaded fasteners.
The 19RAA04AM2 is suited to repetitive assembly work where torque consistency matters more than high breakaway power. Its 0.36" side-to-center distance and 1.06" head height help the operator reach fasteners near flanges, brackets, housings, and other obstructed areas. Collar reverse allows direction changes at the tool, while lever start gives direct control during fastening and removal.
Type: Pneumatic Angle Nutrunner | Series: 19 Series | Model: 19RAA04AM2 | Start Type: Lever Start | Reverse Type: Collar Reverse | Clutch Type: Clecomatic Clutch Shut-Off | Drive Size: 1/4" Square Drive | Torque Range: 12 - 42 in-lb / 1.4 - 4.7 Nm | Torque Range with Standard Spring: 12 - 42 in-lb / 1.4 - 4.7 Nm | Free Speed: 950 RPM | Overall Length: 12.0" / 305 mm | Weight: 1.7 lbs / 0.8 kg | Head Height: 1.06" / 27 mm | Side to Center: 0.36" / 9 mm | Air Inlet: 1/8" NPT | Minimum Hose I.D.: 3/16" | Air Consumption: 11 SCFM | Rated Air Pressure: 90 PSI / 620 kPa
Features:
- Clecomatic clutch shut-off stops the tool when the adjustable preset torque is reached, helping improve repeatability during production fastening.
- Right-angle head reaches into compact assemblies where straight nutrunners, pistol tools, or hand ratchets may be difficult to position.
- Collar reverse allows the operator to switch direction for fastening or releasing threaded fasteners without changing tools.
- Lever start gives controlled actuation during rundown, making the tool practical for bench, fixture, and line-side assembly stations.
- External torque adjustment supports setup changes when matching the tool to different joint requirements.
- Grip material is tested to withstand a range of industrial chemicals commonly encountered in assembly and maintenance environments.
- Standard equipment includes the manual and all torque springs required to meet the indicated torque specification.

Tech Tip: To increase tool performance, extend tool life, and lessen repair costs, use it with a Filter-Regulator-Lubricator FRL)
Applications:
- Aerospace assembly: controlled installation of small threaded fasteners in brackets, housings, panels, and access-limited assemblies.
- Automotive and transportation production: fastening light hardware on subassemblies, interior components, fixtures, and support brackets.
- Appliance and equipment manufacturing: repetitive nut and bolt rundown where a compact angle head helps maintain access and alignment.
- Industrial assembly lines: torque-controlled fastening on hard joints and soft joints; a hard joint is rigid metal-to-metal contact, while a soft joint includes compression from gaskets, plastics, washers, or similar materials.
- MRO and repair benches: removing and reinstalling smaller fasteners during service work where clearance is limited.
FAQs:
- Q: What torque range does the Cleco 19RAA04AM2 cover?
A: The catalog torque range is 12 - 42 in-lb, which converts to approximately 1.0 - 3.5 ft-lbs. It is intended for light assembly fastening, not high-torque bolting or breakaway work. - Q: What does clutch shut-off mean on this nutrunner?
A: Clutch shut-off means the tool stops automatically when the preset torque is reached. This helps reduce over-tightening and supports more consistent fastening than manual control alone. - Q: Can this tool run in reverse?
A: Yes. The 19RAA04AM2 is a collar reversible model, so it can tighten and release threaded fasteners within the tool’s intended torque range. - Q: What socket style fits this model?
A: This nutrunner uses a 1/4" square drive, so it accepts compatible 1/4" drive sockets used for small assembly fasteners. - Q: What air supply does this Cleco angle nutrunner require?
A: Tool performance is rated at 90 PSI / 620 kPa. The catalog lists 11 SCFM air consumption, a 1/8" NPT air inlet, and a 3/16" minimum hose I.D.
| SKU | Torque Range | Free Speed | Length | Weight | Head Height | Side to Center | Air Consumption | Air Inlet Size | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min Nm | Max Nm | Min Ft Lb | Max Ft Lb | r/min | in | Lb | kg | in | in | Scfm | in | |
| 19RAA02AM2 | 0.5 | 2.1 | 0.3 | 1.5 | 2400 | 11.9 | 1.7 | 0.77 | 1.06 | 0.360 | 11 | 1/8 |
| 19RAA02AH2 | 0.5 | 2.4 | 0.3 | 1.7 | 2100 | 12.5 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA02AH3 | 0.5 | 2.4 | 0.3 | 1.7 | 2100 | 12.5 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA03AM2 | 0.6 | 3.1 | 0.4 | 2.2 | 1650 | 12.2 | 1.81 | 0.82 | 1.06 | 0.360 | 11 | 1/8 |
| 19RAA03AH2 | 0.7 | 3.4 | 0.5 | 2.5 | 1450 | 12.7 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA03AH3 | 0.7 | 3.4 | 0.5 | 2.5 | 1450 | 12.7 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA04AM2 | 1.4 | 4.7 | 1 | 3.4 | 950 | 12 | 1.7 | 0.77 | 1.06 | 0.360 | 11 | 1/8 |
| 19RAA05AM2 | 1.4 | 5.7 | 1 | 4.2 | 570 | 12.4 | 1.81 | 0.82 | 1.06 | 0.360 | 11 | 1/8 |
| 19RAA06AH2 | 1.5 | 6 | 1.1 | 4.4 | 850 | 12.5 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA06AH3 | 1.5 | 6 | 1.1 | 4.4 | 850 | 12.5 | 1.81 | 0.82 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA07AH2 | 1.5 | 6.8 | 1.1 | 5 | 500 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA07AH3 | 1.5 | 6.8 | 1.1 | 5 | 500 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA09AH2 | 2.0 | 8.5 | 1.4 | 6.2 | 500 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA09AH3 | 2.0 | 8.5 | 1.4 | 6.2 | 500 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA11AH2 | 2.5 | 11.3 | 1.8 | 8.3 | 340 | 12.3 | 2.09 | 0.95 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA11AH3 | 2.5 | 11.3 | 1.8 | 8.3 | 340 | 12.3 | 2.09 | 0.95 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA12AH2 | 2.5 | 11.3 | 1.8 | 8.3 | 200 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
| 19RAA12AH3 | 2.5 | 11.3 | 1.8 | 8.3 | 200 | 12.9 | 1.9 | 0.86 | 1.19 | 0.50 | 11 | 1/8 |
Looking for more information about Cleco Nutrunner? Click here to view the Catalog.
Need help selecting the correct Cleco Nutrunners for your application? Please call (800) 608-5210 or email info@intlairtool.com
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