For applications requiring higher torque with low operator strain, the Cleco 55PHH603 Pistol Grip Pneumatic Pulse Tool provides a 22.1–40.6 ft-lbs torque range (accurately tightening medium-sized fasteners without over-torquing) at a 6,000 RPM free speed for fast cycle times. Its pistol grip configuration allows secure handling during repetitive fastening, and the hydraulic pulse mechanism (delivering controlled torque pulses instead of continuous rotation) reduces vibration and operator fatigue. The 3/8" square drive accepts a wide range of sockets, making this tool well-suited for automotive, fleet, industrial assembly, and light maintenance tasks.
Type: Pneumatic Pulse Tool | Drive Type: 3/8" Square | Torque Range: 22.1–40.6 ft-lbs | Free Speed: 6,000 RPM | Configuration: Pistol Grip | Shut-Off: Non Shut-Off
Features:
- Hydraulic pulse mechanism reduces vibration and operator fatigue compared to continuous-impact tools
- Pistol grip handle provides comfort and control during repeated fastening tasks
- High-speed 6,000 RPM free speed enables rapid installation and removal of fasteners
- Non shut-off design allows continuous operation without automatic torque cut-off
- 3/8" square drive supports a variety of medium-sized sockets for diverse fastening applications
Made in USA: 

Tech Tip: To increase tool performance, extend tool life, and lessen repair costs, use it with a Filter-Regulator-Lubricator FRL)
Applications:
- Automotive assembly & repair — tightening and removing bolts, nuts, and medium fasteners on engines, chassis, and suspension components
- Fleet & light truck service — torque-sensitive fastening for brake, drivetrain, and suspension work
- Industrial assembly — repeated fastening in production lines, maintenance, and equipment installation
- DIY garage & home workshop — automotive restoration, machinery repair, and general fastening projects
FAQs:
- Q: What is the benefit of the hydraulic pulse mechanism?
A: It delivers precise torque in pulses rather than continuous rotation, reducing vibration and operator strain while ensuring consistent fastener tension. - Q: What does “Non Shut-Off” mean?
A: The tool does not automatically stop at a preset torque. Continuous operation is controlled manually, giving flexibility for repetitive tasks. - Q: Can this tool be used for medium-sized automotive fasteners?
A: Yes, with a 22.1–40.6 ft-lbs torque range and 3/8" square drive, it is well-suited for medium fasteners in automotive repair and maintenance. - Q: What air supply is required?
A: Check Cleco specifications for required air pressure and CFM to ensure consistent performance.
| SKU | Output Drive | Torque Min (Ft-Lb) | Torque Max (Ft-Lb) | Torque Min (Nm) | Torque Max (Nm) | Free Speed (RPM) | Weight Lb | Air NPT | Hose I.D. | Air Scfm |
|---|---|---|---|---|---|---|---|---|---|---|
| 7PHH60Q | 1/4" | 2.95 | 5.2 | 4 | 7 | 6000 | 1.74 | 1/4 | 3/8 | 8.7 |
| 11PHH653 | 3/8" | 4.43 | 8.1 | 6 | 11 | 6500 | 1.74 | 1/4 | 3/8 | 10.5 |
| 11PHH65Q | 1/4" | 4.43 | 8.1 | 6 | 11 | 6500 | 1.76 | 1/4 | 3/8 | 10.5 |
| 20PHH753 | 3/8" | 7.4 | 14.8 | 10 | 20 | 7500 | 1.85 | 1/4 | 3/8 | 17.3 |
| 20PHH75Q | 1/4" | 7.4 | 14.8 | 10 | 20 | 7500 | 1.9 | 1/4 | 3/8 | 17.3 |
| 35PHH653 | 3/8" | 14.8 | 25.8 | 20 | 35 | 6500 | 2.25 | 1/4 | 3/8 | 19.4 |
| 35PHH65Q | 1/4" | 14.8 | 25.8 | 20 | 35 | 6500 | 2.29 | 1/4 | 3/8 | 15.9 |
| 55PHH603 | 3/8" | 22.1 | 40.6 | 30 | 55 | 6000 | 2.47 | 1/4 | 3/8 | 22.9 |
| 80PHH604 | 1/2" | 36.9 | 59 | 50 | 80 | 6000 | 3.09 | 1/4 | 3/8 | 26.5 |
| 120PHH554 | 1/2" | 55 | 89 | 75 | 120 | 5500 | 3.64 | 3/8 | 1/2 | 30 |
Looking for more information about Cleco Pulse Tool? Click here to view the Catalog
Need help selecting the correct Cleco Pulse Tools for your application? Please call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
