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Help CenterDouble Open Box End Wrench Straight Handle Cr-V Steel Metric Size 14x17mm Hardened HRC48-52
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At Cangzhou Dean Safety & Special Tools Co., Ltd, we take pride in our 20+ years of manufacturing excellence since 2001. Our Double Open Box End Wrench with Straight Handle, made from premium Cr-V steel in metric size 14x17mm, embodies the precision and durability that professionals demand. With an annual export value exceeding US$100 million and a presence in over 15 global markets, we deliver tools that combine strength, reliability, and cost-effectiveness. This wrench is engineered to provide a secure grip on fasteners, reducing slippage and enhancing torque transmission—an essential tool for workshops and industrial settings.
Our wrench is forged from high-grade Chrome Vanadium steel (Cr-V), a material known for its superior tensile strength and resistance to wear. The hardness range of HRC48-52 ensures that the tool maintains its shape under heavy use without becoming brittle. The double open box end design allows you to work with two different fastener sizes (14mm and 17mm) from one tool, increasing efficiency. The straight handle offers a balanced grip and optimal leverage, making it ideal for tight spaces where a ratchet or socket may not fit.
Key Features & Benefits:
- Material Strength: Cr-V steel alloy provides exceptional durability and corrosion resistance, extending tool life even in harsh environments.
- Precise Hardness: Heat-treated to HRC48-52, offering the perfect balance between hardness and toughness, minimizing risk of cracking or deformation.
- Double Open Box Design: Two sizes (14mm & 17mm) on one wrench—saves space and reduces tool changes, improving workflow.
- Straight Handle: Ergonomic straight profile allows for comfortable gripping and better torque transfer without slipping.
- Metric Measurement: Standard 14x17mm openings, suitable for a wide range of metric fasteners in automotive, machinery, and equipment repair.
- Finished Surface: Available with phosphate coating or other finishes upon request, providing additional protection against rust.
Technical Specifications (Table):
| Parameter | Value |
| Material | Cr-V Steel (Chrome Vanadium) |
| Hardness | HRC48-52 |
| Size | 14mm x 17mm |
| Type | Double Open Box End |
| Handle Style | Straight |
| Finish | Phosphate (customizable) |
Why Choose Our Wrench?
Compared to standard wrenches, our Cr-V steel variant offers a 30% higher torque capacity and better fatigue resistance. The controlled heat treatment process ensures each unit meets consistent hardness standards. Our straight handle design reduces hand strain during extended use, while the precise 12-point box end provides a secure grip on fastener corners—minimizing rounding off. This tool is ideal for professionals who require reliable performance in high-torque applications.
Customer Trust & Company Strength
With 22 years of industry experience (2001–2023), Cangzhou Dean Safety & Special Tools Co., Ltd has built a reputation for quality and reliability. Our annual export value surpasses US$100 million, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. We ship from Tianjin, Shanghai, and Ningbo ports, ensuring efficient logistics. Our dedicated R&D team continuously improves product designs based on market feedback. All tools undergo rigorous quality control checks, and we offer OEM/ODM services to meet specific branding or dimensional requirements. Whether you need bulk orders for industrial supply chains or custom packaging, we are ready to support your business. Contact us today for a quote or sample—experience the Dean Safety difference!
Frequently Asked Questions (FAQ):
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Q: What is the difference between a double open box end wrench and a combination wrench?
A: A double open box end wrench has two identical box end openings (both closed), allowing you to work on two different fastener sizes. A combination wrench typically has one open end and one box end. Our design provides a more secure grip on fasteners, especially for tight spaces where a ratchet cannot be used. -
Q: Is this wrench suitable for use on stainless steel fasteners?
A: Yes, it can be used on stainless steel, but ensure the wrench is clean and free of debris to avoid galling. The Cr-V steel is hard enough to handle stainless bolts without deformation. -
Q: What is the torque rating for this wrench?
A: While we do not provide a specific torque rating, the HRC48-52 hardness and straight handle allow for safe application of significant hand torque. For heavy-duty applications, we recommend using a torque wrench for precise tightening. -
Q: Can I get this wrench in other metric sizes?
A: Yes, we offer a full range of metric sizes from 6mm to 36mm. Custom size combinations are available upon request for OEM orders. -
Q: Does the phosphated finish require special maintenance?
A: The phosphate coating provides good corrosion resistance but is not as durable as chrome plating. Wipe clean after use and store in a dry environment. We also offer chrome or black oxide finishes as options. -
Q: Is this product compliant with any international standards?
A: Our manufacturing process follows industry standards (e.g., DIN, ANSI). However, we recommend verifying specific requirements for your region. We can provide test reports upon request. -
Q: What is the minimum order quantity (MOQ) for this wrench?
A: For standard models, MOQ is 100 pieces. For custom packaging or branding, MOQ may be higher. Contact our sales team for details. -
Q: How long is the delivery time?
A: Typical lead time is 30–45 days after order confirmation, depending on quantity and customization. We ship via sea, air, or express.
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