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OEM / ODM welcome.**Send enquiry [* SKU ZAW-412LB2·1/4" Drive Air Impact Wrench# ZAW-412LB2 1/4 inch Air WrenchThe **ZAW-412LB2 1/4-inch air wrench** is the perfect choice for precision fastening jobs where **speed, control, and durability** are essential. Designed with a **two hammer impact mechanism**, this compact pneumatic wrench delivers **consistent torque output** and smooth operation, making it ideal for **electronics assembly, small engine repairs, and light to medium-duty maintenance tasks**.Send enquiry for ZAW-412LB2Tools catalog (PDF)Key specificationsFull series table ↓Bolt Size CapacityM8Working Torque ft-lb (Nm)20(27)MAX. Torque ft-lb (Nm)26(35)Free Speed rpm13000Air Consumption l/min (cfm)198(7)Overall Length inch (mm)5.71(145)Air Inlet P.T1/4Net Weight lbs (kgs)1.98(0.9)*](https://www.airtools.com.tw/wp-content/uploads/ZAW-412LB2-1.jpg)[**](https://www.facebook.com/sharer.php?u=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/)[**](https://x.com/share?url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/)[**](https://twitter.com/share?url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/)[**](https://threads.net/intent/post?text=ZAW-412LB2%201%2F4%C2%A0inch%20Air%20Wrench%0A%0Ahttps%3A%2F%2Fwww.airtools.com.tw%2Fzaw-412lb2-1-4-inch-air-wrench%2F)[**](mailto:?subject=ZAW-412LB2%201%2F4%C2%A0inch%20Air%20Wrench&body=Check%20this%20out%3A%20https%3A%2F%2Fwww.airtools.com.tw%2Fzaw-412lb2-1-4-inch-air-wrench%2F)[**](https://pinterest.com/pin/create/button?url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/&media=https://www.airtools.com.tw/wp-content/uploads/ZAW-412LB2-1.jpg&description=ZAW-412LB2%201%2F4%C2%A0inch%20Air%20Wrench)[**](https://vkontakte.ru/share.php?url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/&titleZAW-412LB2%201%2F4%C2%A0inch%20Air%20Wrench)[**](https://www.linkedin.com/shareArticle?mini=true&url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/&title=ZAW-412LB2%201%2F4%C2%A0inch%20Air%20Wrench)[**](https://tumblr.com/widgets/share/tool?canonicalUrl=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/)[**](https://telegram.me/share/url?url=https://www.airtools.com.tw/zaw-412lb2-1-4-inch-air-wrench/)- [ Description ](#tab-description)[ZAW-412LB2 1/4-Inch Air Wrench – Professional Two Hammer Pneumatic Impact Wrench with Handle Exhaust](#act-sec-1)[](#act-sec-2)[Compact Precision Power](#act-sec-3)[](#act-sec-4)[Operator Comfort & Control](#act-sec-5)[](#act-sec-6)[Built for Professional Use](#act-sec-7)[](#act-sec-8)[Technical Specifications:](#act-sec-9)[Key Benefits:](#act-sec-10)[](#act-sec-11)[](#act-sec-12)[Perfect For:](#act-sec-13)[Specification:](#act-sec-14)[Specifications](#act-specs-table)## **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 where **speed, control, and durability** are essential. Designed with a **two hammer impact mechanism**, this compact pneumatic wrench delivers **consistent torque output** and smooth operation, making it ideal for **electronics assembly, small 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** channels air away from the user’s face and hands, creating a cleaner and 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 and compact profile make 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, small 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 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)  Specifications · full series| **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: 60~90psiNeed pricing or an OEM version of the ZAW-412LB2?**Tell us quantities and requirements. ISO 9001:2015 · Made in Taiwan. Send enquiry### Related products[*3/8" Drive Air Impact Wrench ZAW-417SL1[ZAW-417SL1 3/8 inch Air Wrench](https://www.airtools.com.tw/zaw-417sl1-3-8-inch-air-wrench/)The ZAW-417SL1 Air Wrench is expertly engineered for high-performance fastening and loosening applications, combining power, efficiency, and operator comfort. Built with a…View details → [ ](https://www.airtools.com.tw/zaw-241b-1-2-inch-air-wrench/) 1/2" Drive Air Impact Wrench ZAW-241B[ZAW-241B 1/2 inch Air Wrench](https://www.airtools.com.tw/zaw-241b-1-2-inch-air-wrench/)The ZAW-241B 1/2-inch air wrench is built for heavy-duty fastening applications where maximum torque, rugged durability, and consistent performance are critical. 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Its clutch mechanism ensures smooth torque delivery, while the…View details → Latest News- [How Shock Reduced Air Hammers Changed the Industry](https://www.airtools.com.tw/how-shock-reduced-air-hammers-changed-the-industry/) - [From Assembly Line to Quality Record: A Practical Guide to Torque Measurement](https://www.airtools.com.tw/from-assembly-line-to-quality-record-a-practical-guide-to-torque-measurement/) - [New tutorial video available for Torque Monitoring System](https://www.airtools.com.tw/new-tutorial-video-available-for-torque-monitoring-system/) - [Professional Fastening Solutions with New Dual-Flex Angle Air Impact Wrenches: ZIW340FA and ZIW410FA](https://www.airtools.com.tw/professional-fastening-solutions-with-new-dual-flex-angle-air-impact-wrenches-ziw340fa-and-ziw410fa/) - [Next-Generation Composite Air Impact Wrenches: ZIW1020C and ZIW1010C MINI](https://www.airtools.com.tw/next-generation-composite-air-impact-wrenches-ziw1020c-and-ziw1010c-mini/) ISO 9001:2015 certified professional OEM/ODM air pneumatic tool, gear reducer, wireless transducer, torque controller, torque monitoring system, torque measuring & torque calibration equipment and precision machining parts manufacturer from Taiwan (R.O.C) with over 40 years of experiences in the industry.Passion For Innovation- [Home](https://www.airtools.com.tw/) - [News](https://www.airtools.com.tw/news/) - [About us](https://www.airtools.com.tw/about-china-pneumatic-corporation/) - [Products](/products) - [Product catalog](https://www.airtools.com.tw/product-catalog/) - [Torque Control](https://www.airtools.com.tw/torque-control-system/) - [Resources](https://www.airtools.com.tw/resources/) - [Videos](https://www.youtube.com/@AirtoolsTw) - [Unit Converter](https://www.airtools.com.tw/unit-converter/) - [Contact us](https://www.airtools.com.tw/contact-us/) Copyright 1984 - 2026 © **China Pneumatic Corporation (CPC). 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