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Help Center45# Steel Combination Wrench, Long Shank 245mm, Double End Wrench,Heavy Duty Combination Wrench
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As a leading manufacturer based in Cangzhou, Hebei, China, Cangzhou Dean Safety&Special Tools Co.,Ltd has been dedicated to producing high-quality industrial tools since 2001. With an annual export value exceeding US$100 Million, we supply reliable products to markets across North America, South America, Europe, Asia, and beyond. Our 45# Steel Combination Wrench, Long Shank 245mm, Double End Wrench, Heavy Duty Combination Wrench is engineered for professionals who demand durability and precision in demanding work environments.
This wrench combines the functionality of an open-end and a box-end wrench in one tool, featuring an extended shank of 245mm that provides extra reach and leverage. Manufactured from premium 45# carbon steel, it undergoes a rigorous heat treatment process to achieve optimal hardness and toughness, ensuring long-lasting performance even under heavy torque applications. The double-end design allows you to quickly switch between loosening or tightening fasteners, while the heavy-duty construction minimizes wear and deformation.
Key Features & Technical Specifications
| Specification | Details |
|---|---|
| Material | 45# Carbon Steel (Hardened & Tempered) |
| Overall Length | 245mm (9.65 inches) |
| Configuration | Open-End (15°) + Box-End (12-Point) |
| Surface Treatment | Polished Chrome or Black Oxide (Customizable) |
| Hardness (HRC) | 42-48 HRC |
| Torque Capacity | High – Suitable for heavy-duty fastening |
| Available Sizes | 8mm to 24mm (SAE sizes on request) |
- Long Shank Design: The 245mm length provides increased leverage, making it easier to loosen stubborn bolts and reach recessed fasteners.
- Double End Efficiency: Open end for quick spinning, box end for final tightening – reduces tool changes and saves time.
- Heavy Duty Construction: Thicker cross-section and refined geometry resist bending and breaking under high torque.
- Anti-Slip Box End: 12-point box end grips fasteners securely, minimizing rounding of bolt heads.
- Corrosion Resistance: Chrome-plated finish protects against rust and makes cleaning effortless.
- Ergonomic Comfort: Smooth edges and balanced weight reduce hand fatigue during prolonged use.
This combination wrench is ideal for automotive repair, heavy equipment maintenance, industrial assembly, and construction projects. Whether you are a professional mechanic or a DIY enthusiast, the long shank and robust build offer superior control and durability. Each wrench is individually inspected to ensure consistent quality and dimensional accuracy.
Trustworthy Manufacturing & Global Supply
Cangzhou Dean Safety&Special Tools Co.,Ltd has been a trusted exporter for over two decades, shipping to more than 10 major markets including North America, Europe, Oceania, and Southeast Asia. Our annual export value exceeds US$100 million, demonstrating our capacity to deliver large volumes with consistent quality. We operate from our factory in Cangzhou, with convenient access to Tianjin, Shanghai, and Ningbo ports for efficient international shipping.
Every batch of wrenches undergoes stringent quality control, including hardness testing, torque testing, and dimensional checks. We offer customization options such as different surface finishes, laser engraving of logos, and tailored packaging. With a strong commitment to customer satisfaction, we provide responsive after-sales support and flexible order quantities (OEM/ODM welcome). Choose our 45# Steel Combination Wrench to enhance your toolkit with a reliable, heavy-duty solution that meets the demands of professional work environments.
Frequently Asked Questions (FAQ)
Q1: What sizes are available for this combination wrench?
A: The long shank 245mm wrench is typically offered in metric sizes from 8mm to 24mm. SAE (inch) sizes can be produced upon request. Please contact our sales team for a full size chart.
Q2: Is the wrench suitable for use with impact tools?
A: No, this wrench is designed for manual use. Using it with power tools like impact wrenches may cause damage. We recommend using impact-rated sockets for driven applications.
Q3: Can the surface finish be customized to our brand color?
A: Yes, we offer various finishes including black oxide, chrome plated, and phosphate coated. Custom colors are possible for large orders. Please inquire about MOQ and lead time.
Q4: What is the hardness of the 45# steel used?
A: After heat treatment, the wrench reaches a hardness of 42-48 HRC, providing excellent wear resistance and structural strength without becoming brittle.
Q5: Do you provide samples before bulk order?
A: Yes, we gladly provide samples for quality evaluation. Sample cost and shipping are negotiable and may be refunded upon placing a formal order.
Q6: How do you ensure the wrench does not slip on bolts?
A: The box end features a 12-point design that engages with the fastener from multiple angles, reducing the risk of rounding. The open end has a precise angle (15°) for better contact.
Q7: What is the minimum order quantity (MOQ)?
A: Our standard MOQ for stock sizes is 500 pieces. For customized sizes or branding, MOQ may vary. We welcome smaller trial orders for new customers.
Q8: How should I maintain the wrench to prevent rust?
A: After use, wipe clean with a dry cloth. Store in a dry environment. If the chrome finish is damaged, apply a light rust-preventive oil periodically.
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