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Help CenterExtra Long Combination Wrench, 15 Degree Offset, 4140 Alloy Steel, Heat Treated, 500mm Length for High Reach
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Introducing our Extra Long Combination Wrench – a premium solution for professionals who need extended reach without sacrificing torque or durability. Manufactured by Cangzhou Dean Safety&Special Tools Co., Ltd., a trusted manufacturer with over two decades of experience (since 2001), this wrench is crafted from high-strength 4140 alloy steel and precision heat-treated to withstand demanding industrial environments. With a total length of 500mm and a 15-degree offset, it provides superior access to fasteners in deep recesses or tight spaces, making it an essential tool for maintenance crews, mechanics, and assembly lines.
Key Features & Specifications
- Material: Premium 4140 Chromium-Molybdenum Alloy Steel – offers excellent tensile strength and resistance to wear.
- Length: 500mm (19.7 inches) – extra-long design for high-reach applications.
- Offset: 15° angle on the box end – allows for better clearance and reduces knuckle busting.
- Heat Treatment: Quenched and tempered to achieve optimal hardness (typically HRC 38-42) while maintaining core toughness.
- Finish: Black oxide coating – provides corrosion resistance and a non-glare surface.
- Combination Design: Open-end on one side, 12-point box end on the other – maximizes versatility.
| Parameter | Value |
|---|---|
| Overall Length | 500 mm (19.7") |
| Steel Grade | 4140 Alloy Steel |
| Heat Treatment | Through-hardened, oil quenched, tempered |
| Offset Angle | 15° (±2°) |
| Surface Finish | Black Oxide, optional phosphate |
| Applicable Sizes | Custom from 10 mm to 55 mm (example: 27 mm) |
| Standards | ANSI / ASME B107.100 or DIN 3113 (available upon request) |
Why Choose Our Extra Long Wrench?
- Enhanced Torque Transmission: The 500mm lever arm provides mechanical advantage, allowing you to break loose stubborn fasteners with less effort.
- Ergonomic & Safe: 15° offset reduces wrist strain and improves access in confined engine compartments or machinery.
- Durable Build: 4140 alloy steel combined with precise heat treatment ensures the wrench resists bending and deformation even under heavy load.
- Versatile Applications: Ideal for heavy equipment maintenance, construction, oil & gas, and any industry requiring deep reach.
- Customizable Options: We can produce different sizes, finishes, or even special markings as per your requirements.
Technical Advantages
The 4140 alloy steel we use is known for its excellent balance of strength, toughness, and fatigue resistance. After heat treatment, the wrench achieves a uniform structure that prevents premature failure. Our manufacturing process includes precision forging and CNC machining to ensure accurate jaw profiles and a snug fit on fasteners – reducing the risk of rounding. Every batch is sampled for hardness and dimensional accuracy.
Trust & Reliability
Cangzhou Dean Safety&Special Tools Co., Ltd. has been a leading manufacturer of industrial tools since 2001, with an annual export value exceeding US $100 million. Our products are shipped globally from Tianjin, Shanghai, and Ningbo ports, serving markets across North America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We are committed to delivering consistent quality, competitive pricing, and on-time delivery. With a dedicated R&D team, we can also develop custom solutions for your specific applications.
Frequently Asked Questions
-
Q: What is the maximum torque rating for this wrench?
A: While we do not publish a specific torque limit (as it varies with user strength), the 500mm length and 4140 steel construction allow for considerable leverage. For heavy-duty applications, we recommend using a torque multiplier if precise torque is required. -
Q: Can I get this wrench in metric sizes other than 27mm?
A: Yes, we produce custom sizes from 10mm to 55mm. Please contact us with your desired size and quantity. -
Q: Is the wrench certified to any international standard?
A: Our wrenches can be made to meet ANSI/ASME B107.100 or DIN 3113 standards upon request. We can also provide compliance documentation if needed. -
Q: What is the surface hardness after heat treatment?
A: Typically, the wrench is hardened to Rockwell C 38-42. However, we can adjust the heat treatment cycle to meet your specific requirements. -
Q: How should I maintain this wrench to prevent rust?
A: The black oxide finish offers moderate corrosion resistance. For long-term storage in humid environments, we recommend applying a light oil film. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 100 pieces. For custom sizes or special finishes, MOQ may be higher. Please inquire for details. -
Q: Do you offer samples before bulk order?
A: Yes, we can provide pre-production samples for evaluation. Sample costs are negotiable based on the order volume. -
Q: How long does shipping typically take?
A: For stock items, delivery is about 15-25 working days after order confirmation. For custom products, lead time is 20-40 working days.
Ready to enhance your toolkit? Our extra long combination wrench combines reach, strength, and precision – all backed by a manufacturer with 20+ years of global supply experience. Contact Cangzhou Dean Safety&Special Tools Co., Ltd. today for a quote, sample, or technical consultation. We look forward to serving you.
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