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Help CenterCarbon Steel Bent Handle Single Open Wrench 1200N.m Max Torque 5000 Cycle Tested 12mm Size
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As a dedicated manufacturer established in 2001, Cangzhou Dean Safety&Special Tools Co.,Ltd brings over two decades of expertise to the production of high-performance tools. Our Carbon Steel Bent Handle Single Open Wrench (12mm size) is engineered to deliver exceptional torque capacity of 1200 N.m and has been rigorously tested to withstand 5000 cycles without failure. This wrench combines precision forging with an ergonomic bent handle design, offering superior leverage and control for demanding professional applications. Whether you are in automotive repair, industrial maintenance, or construction, this tool is built to enhance efficiency and reduce operator fatigue.
Key Features & Technical Specifications
- High-Strength Carbon Steel Construction – The wrench is forged from premium carbon steel, heat-treated to achieve optimal hardness and toughness, ensuring long-lasting performance even under high stress.
- Bent Handle Design for Enhanced Leverage – The 15-degree bent handle provides a natural wrist position, reducing strain and allowing higher torque application without slipping. Ideal for tight spaces and repetitive use.
- 1200 N.m Maximum Torque Capacity – Capable of handling heavy-duty fastening and loosening tasks, this wrench is suitable for large bolts and nuts in machinery, trucks, and structural assemblies.
- 5000 Cycle Tested Reliability – Each wrench undergoes 5000 cycles of open-close load testing to ensure consistent performance and durability. This guarantees a long service life even in continuous professional environments.
- Precision 12mm Opening – The open end is machined to tight tolerances (ANSI/ASME standards), providing a snug fit on 12mm fasteners to minimize rounding and prevent damage.
- Corrosion-Resistant Finish – Available with optional black oxide, phosphate, or chrome plating finishes to resist rust and wear. Custom surface treatments are available upon request.
- Ergonomic Non-Slip Grip – The handle is designed with a textured surface or optional rubber coating to improve grip and safety, especially in oily or wet conditions.
| Parameter | Value |
| Material | Carbon Steel (45# / 40Cr optional) |
| Wrench Size | 12 mm (Metric) |
| Max Torque | 1200 N.m |
| Cycle Test | 5000 cycles |
| Total Length | Approx. 250 mm (customizable) |
| Handle Angle | 15° bent |
| Surface Treatment | Black oxide / Phosphate / Chrome (optional) |
| Packing | Bulk / Blister pack / Custom |
Design & Performance Advantages
The bent handle design is not just for ergonomics; it effectively increases the moment arm while keeping the wrist aligned, allowing users to apply higher torque with less effort. This is particularly beneficial when working on engine components, heavy equipment, or structural bolts where clearance is limited. The single open end configuration (as opposed to combination wrenches) provides a slimmer profile that fits into narrower spaces, making it a preferred tool for mechanics and technicians.
Each wrench is manufactured through a precision forging process that aligns the grain flow of the steel, resulting in superior strength compared to machined or cast alternatives. The 5000-cycle test simulates real-world loading and unloading, ensuring that the wrench will maintain its performance and structural integrity over a long operational life. This rigorous testing gives our customers confidence in the tool's reliability for daily professional use.
Application Scenarios
- Automotive Repair – Loosening and tightening lug nuts, suspension components, and engine bolts in cars and trucks.
- Industrial Maintenance – Servicing heavy machinery, conveyors, pumps, and compressors requiring high torque.
- Construction – Assembly of steel structures, formwork, and scaffolding.
- Agricultural Equipment – Repairing tractors, harvesters, and irrigation systems.
- DIY & Home Workshops – Heavy-duty home projects such as building decks or repairing trailers.
Why Choose Cangzhou Dean Safety&Special Tools?
With an annual export value exceeding US$100 Million, we have established a global presence across North America, South America, Europe, Asia, Africa, and Oceania. Our factory in Cangzhou, Hebei, China, is equipped with advanced forging and heat treatment lines, and we strictly adhere to international quality standards. Every wrench is individually inspected and tested to ensure it meets the specified torque and cycle performance.
We offer flexible packaging options and can customize the handle shape, surface finish, or even add your brand logo. Our experienced sales team ensures prompt responses and efficient logistics from major ports like Tianjin, Shanghai, and Ningbo. Whether you require a single SKU or a full tool set, we are your reliable partner for professional hand tools.
Contact us today for pricing, samples, or technical discussions. Invest in a wrench that delivers real-world performance – the Carbon Steel Bent Handle Single Open Wrench (12mm, 1200 N.m, 5000 Cycle Tested) is ready to handle your toughest jobs.
Frequently Asked Questions
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Q: What is the hardness rating of this wrench?
A: The carbon steel is heat-treated to a hardness range of HRC 40-45, providing an optimal balance between strength and toughness. Hardness can be adjusted based on customer requirements. -
Q: Is the wrench suitable for impact tools?
A: This wrench is designed for manual use only. For impact applications, we recommend our impact-grade socket sets. Using it with power tools may exceed the design limits. -
Q: Can I get the same wrench in other sizes?
A: Yes, we offer a full range of metric and inch sizes from 6mm to 50mm, as well as custom sizes. Please inquire with your requirements. -
Q: How does the 5000-cycle test guarantee durability?
A: The test simulates repeated loading and unloading at 80% of the maximum torque. Passing 5000 cycles indicates that the wrench can withstand extended use without plastic deformation or failure. -
Q: What surface finishes are available and which is best for outdoor use?
A: Common finishes include black oxide (standard), phosphate (better corrosion resistance), and chrome plating (aesthetic and rust-proof). For outdoor or marine environments, chrome plating or phosphate with oil coating is recommended. -
Q: Do you provide samples before bulk order?
A: Absolutely. Sample orders are welcome, and we can ship via express (DHL, FedEx, UPS). Sample cost is deductable from the first bulk order. -
Q: What are the packaging options for export?
A: Standard packaging includes polybag with tag, blister card, or custom color box. For bulk orders, we offer export cartons with inner foam to prevent damage. -
Q: How long is the warranty?
A: We provide a 12-month warranty against manufacturing defects. For any quality issues, we offer replacement or refund.
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