ZAW-412LB3 3/8-Inch Air Wrench – Professional Two Hammer Pneumatic Impact Wrench with Handle Exhaust
The ZAW-412LB3 3/8-inch air wrench is engineered for professionals who demand high torque, durability, and precision in a compact form. Designed with a two-hammer impact mechanism, this industrial-grade pneumatic tool delivers rapid, powerful blows per revolution for maximum torque transfer and reduced reaction force — making it perfect for automotive repair, machinery assembly, and heavy-duty maintenance tasks.
Performance & Durability
Powered by compressed air, the ZAW-412LB3 generates fast bolt removal speeds and consistent tightening power. The two hammer system ensures smooth operation with minimal vibration, reducing wear on internal components and extending tool life. Its precision-machined gearing and heat-treated impact housing withstand the demands of continuous, high-intensity use in professional workshops.
Ergonomic & Operator-Friendly Design
The handle exhaust system channels discharged air away from the operator’s face and hands, improving comfort and preventing dust or debris from blowing into the work area. The textured grip handle provides secure control, even in oily or greasy environments, while the balanced weight distribution minimizes fatigue during prolonged use.
Compact for Tight Spaces
With its lightweight build and compact head design, this 3/8-inch pneumatic wrench fits easily into confined spaces such as engine bays or machinery housings. The optimized power-to-weight ratio means you can achieve maximum fastening efficiency without straining your hands or wrists.
Technical Specifications:
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Drive Size: 3/8 inch
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Impact Mechanism: Two Hammer
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Exhaust Type: Handle exhaust (rear)
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Material: High-strength alloy housing with heat-treated internal parts
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Application Range: Medium-duty fastening, automotive, industrial, and maintenance work
Key Benefits at a Glance:
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Powerful torque for quick bolt tightening and removal
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Durable two hammer design for extended lifespan
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Ergonomic handle exhaust for clean and comfortable operation
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Compact and lightweight for confined spaces
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Industrial-grade construction for daily heavy use
Ideal Applications:
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Automotive engine and chassis work
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Industrial equipment assembly
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Machinery maintenance
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General mechanical repairs
Specification:
- Bolt Size Capacity: M8
- Working Torque: 20(27)ft-lb(Nm)
- MAX. Torque: 26(35)ft-lb(Nm)
- Free Speed: 13000rpm
- Air Consumption:198(7)l/min(cfm)
- Overall Length: 5.71(145)inch(mm)
- Air Inlet: 1/4P.T
- Net Weight: 1.98(0.9)lb(kg)
- Sound Level: 88db(A)
| Model | Bolt Size Capacity |
Working Torque ft-lb(Nm) |
MAX. Torque ft-lb(Nm) |
Free Speed rpm |
Air Consumption l/min(cfm) |
Overall Length inch(mm) |
Air Inlet P.T |
Net Weight lbs(kgs) |
Sound Level db(A) |
| ZAW-412LB2 | M8 | 20(27) | 26(35) | 13000 | 198(7) | 5.71(145) | 1/4 | 1.98(0.9) | 88 |
| ZAW-412LB3 | M8 | 20(27) | 26(35) | 13000 | 198(7) | 5.71(145) | 1/4 | 1.98(0.9) | 88 |
| ZAW-514LB2 | M8 | 20(27) | 22(30) | 11500 | 170(6) | 6.1(155) | 1/4 | 1.98(0.9) | 87 |
| ZAW-514LB3 | M8 | 20(27) | 22(30) | 11500 | 170(6) | 6.1(155) | 1/4 | 1.98(0.9) | 87 |
| ZAW-417SL1 | M10 | 59(80) | 148(200) | 8000 | 226(8) | 7.2(183) | 1/4 | 2.65(1.2) | 94 |
| ZAW-410LB | M10 | 59(80) | 148(200) | 7700 | 198(7) | 7.28(185) | 1/4 | 2.87(1.3) | 89 |
| ZAW-517LB | M12 | 74(100) | 140(190) | 8000 | 283(10) | 6.3(160) | 1/4 | 2.65(1.2) | 87 |
| ZAW-421LB3 | M12 | 81(110) | 177(240) | 8000 | 283(10) | 7.28(185) | 1/4 | 2.89(1.34) | 93 |
Recommended Gauge Air Pressure: 60~90psi
