Cleco 120PTHH304 Shut-Off Model Pneumatic Pulse Tool | H-Series | 3,000 RPM | 1/2" Square Drive | 55 - 89 (ft-lbs) Torque Range

Built for medium-to-high torque production fastening, the Cleco 120PTHH304 H-Series shut-off pneumatic pulse tool delivers a 55 - 89 ft-lbs torque range for controlled assembly work on larger brackets, frames, housings, and equipment subassemblies. It's 1/2" square drive that accepts compatible impact-rated sockets, while the 3,000 RPM free speed helps operators run fasteners down efficiently before the tool reaches final torque.

As a shut-off pulse tool, the 120PTHH304 automatically stops when the preset torque is achieved, helping improve fastening consistency and reduce the risk of over-tightening. The pulse mechanism delivers torque in controlled bursts, which reduces reaction force compared with many continuous-drive fastening tools. This makes it useful in automotive assembly, heavy truck production, agricultural equipment manufacturing, appliance assembly, and industrial MRO stations where repeatable tightening is required across many fasteners.

Type: Shut-Off Pneumatic Pulse Tool | Series: H-Series | Model: 120PTHH304 | Drive Size: 1/2" | Drive Type: Square | Torque Range: 55 - 89 ft-lbs / 75 - 120 Nm | Free Speed: 3,000 RPM | Weight: 3.75 lb / 1.70 kg | Air Inlet: 3/8" | Recommended Hose I.D.: 1/2" | Air Consumption: 19.40 SCFM

Features:

• Shut-off pulse design stops the tool at the preset torque for controlled production fastening.
• Market-leading repeatability and unmatched accuracy support consistent tightening from one joint to the next.
• Inertia shut-off system helps reduce operator judgment during final tightening.
• Low noise level supports use in busy assembly cells and manufacturing workstations.
• Efficient 3 chamber air motor provides steady pneumatic output during repeated fastening cycles.
• External speed control allows tool adjustment without disassembling the housing.
• Oil less blades reversible torque signal port supports integration into controlled fastening processes.
• Lightweight 3.75 lb pistol grip body helps reduce handling strain during repeated use.

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 — tightening medium-to-high torque fasteners on brackets, supports, frame sections, and vehicle subassemblies.
• Heavy truck and trailer production — controlled bolt-up on chassis components, mounted equipment, and structural fastening points.
• Agricultural and off-road equipment manufacturing — fastening guards, panels, brackets, and machine subassemblies within the tool’s torque range.
• Appliance and equipment assembly — repeated socket-driven fastening where shut-off control helps maintain process consistency.
• Industrial MRO workstations — tightening bolts and nuts on machinery repairs when a controlled pulse tool is preferred over a standard impact wrench.

FAQs:

• Q: What does the shut-off feature do on the Cleco 120PTHH304?
  A: The shut-off mechanism stops the tool when the preset torque is reached. This helps improve repeatability and reduces the chance of continuing to tighten after the joint has reached the target torque.
• Q: Is this tool used for tightening or bolt removal?
  A: The 120PTHH304 is primarily a controlled tightening tool for assembly work. It is not a breakaway impact wrench and should not be selected for removing seized or heavily rusted bolts.
• Q: What sockets work with this model?
  A: This tool has a 1/2" square drive, so it should be used with compatible 1/2" drive impact-rated sockets. Socket size should match the fastener and the joint requirements.
• Q: What air line setup does the 120PTHH304 require?
  A: Manufacturer data lists a 3/8" air inlet, 1/2" recommended hose I.D., and 19.40 SCFM air consumption. Use clean, regulated air and a properly sized air supply to maintain consistent pulse performance.
• Q: What is the difference between a pulse tool and an impact wrench?
  A: A pulse tool is used for controlled tightening and delivers torque in hydraulic pulses that reduce reaction force. An impact wrench is typically chosen for breakaway power and general removal work, but it does not provide the same controlled shut-off fastening behavior.

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Need help selecting the correct Cleco Pulse Tools for your application? Please call (800) 608-5210 or email info@intlairtool.com