ZAW-412LB2 1/4-Inch Air Wrench – Professional Two Hammer Pneumatic Impact Wrench with Handle Exhaust
The ZAW-412LB2 1/4-inch air wrench is the perfect choice for precision fastening jobs that require speed, control, and durability. Designed with a two-hammer impact mechanism, this compact pneumatic wrench delivers consistent torque and smooth operation, making it ideal for electronics assembly, engine repairs, and light-to-medium-duty maintenance tasks.
Compact Precision Power
With its 1/4-inch drive size, the ZAW-412LB2 is optimized for smaller fasteners, providing accurate tightening without over-torquing. The two-hammer design ensures balanced, powerful impacts while minimizing vibration — extending tool life and improving operator comfort.
Operator Comfort & Control
The handle exhaust system directs air away from the user’s face and hands, creating a cleaner, safer work environment. The ergonomic grip handle offers superior control during operation, reducing slippage and operator fatigue.
Built for Professional Use
Manufactured with heat-treated internal components and a durable alloy housing, this 1/4-inch air wrench withstands daily use in professional environments. Its lightweight, compact profile makes it perfect for tight spaces such as engine compartments, machinery housings, and assembly lines.
Technical Specifications:
Drive Size: 1/4 inch
Impact Mechanism: Two Hammer
Exhaust Type: Handle exhaust (rear)
Material: High-strength alloy housing with precision-machined components
Application Range: Light to medium-duty fastening, electronics, engine maintenance, assembly work
Key Benefits:
Two hammer mechanism for efficient torque delivery
Compact 1/4-inch drive for small fasteners and precision work
Handle the exhaust system for improved comfort and cleanliness
Durable, lightweight build for long-term professional use
Low vibration operation for better control and less fatigue
Perfect For:
Precision mechanical assembly
Small engine and motorcycle repairs
Automotive interior and dashboard work
Manufacturing and electronics assembly lines
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



