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Help CenterExtra Long Offset Striking Hex Wrench 17mm With Non-Slip Grip Handle Knurled Surface for Oil Rig Maintenance
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Cangzhou Dean Safety & Special Tools Co., Ltd, a trusted manufacturer since 2001, proudly introduces the Extra Long Offset Striking Hex Wrench 17mm with Non-Slip Grip Handle Knurled Surface — a precision-engineered tool specifically designed for the demanding environment of oil rig maintenance. With an annual export value exceeding US$100 million and global shipments to over 30 countries, our consistent quality and innovative design have made us a preferred partner for heavy industries worldwide. This wrench combines extended length, offset geometry, and ergonomic safety features to deliver superior torque and accessibility in confined spaces, ensuring efficiency and safety for your crew.
The 17mm hex opening is precision machined to tight tolerances, providing a secure grip on fasteners and reducing the risk of rounding. The extra-long shaft offers increased leverage, allowing operators to apply higher torque with less physical effort — critical for stubborn bolts commonly encountered on drilling platforms and rigs. The offset head design (typically 15° or 30° angle, customizable) enables access to recessed or angled fasteners where straight wrenches cannot reach, minimizing disassembly time.
Safety is paramount in oil rig environments. The non-slip grip handle is engineered with a diamond-knurled surface that provides excellent traction even with oily or wet gloves. The handle contour reduces hand fatigue during prolonged use, while the striking face at the end allows safe hammer blows to loosen rusted or overtightened fasteners without damaging the tool. Our wrenches are forged from high-quality chrome-vanadium steel and heat-treated for durability, with a corrosion-resistant black oxide finish that withstands harsh marine atmospheres and chemical exposure.
Key features are summarized in the table below:
| Feature | Specification / Benefit |
|---|---|
| Size | 17mm – optimized for common oil rig fasteners; also available in other sizes upon request. |
| Overall Length | Extra long (e.g., 400mm, 500mm or customized) – provides significant leverage without needing a cheater bar. |
| Offset Angle | Standard 15° or 30° offset – facilitates access to fasteners in tight or recessed areas. |
| Handle Surface | Diamond knurling – non-slip grip even with oily or wet hands; reduces slippage and improves safety. |
| Material | Drop-forged chrome-vanadium steel – high tensile strength, minimal deformation under heavy load. |
| Surface Finish | Black oxide with anti-rust treatment – suitable for offshore and humid environments. |
| Striking Face | Integral striking head at handle end – allows safe hammer impact without damaging the tool. |
| Weight | Optimized balance – reduces operator fatigue while maintaining strength. |
The Extra Long Offset Striking Hex Wrench is not just an ordinary tool — it is a result of decades of experience in serving heavy industries. Our design team collaborates with oil rig maintenance professionals to continuously improve ergonomics and performance. For example, the knurled grip pattern is carefully calculated to provide maximum friction without irritating the skin, and the offset angle is tested to ensure clearance without sacrificing torque application. Each wrench undergoes rigorous quality checks including hardness testing, dimensional inspection, and impact resistance verification.
Beyond oil rig maintenance, this wrench is also ideal for use in shipbuilding, mining, chemical plants, and large-scale construction where powerful hand tools are essential. Available in custom lengths, special offset angles, and even with additional coatings for extreme temperatures, we can tailor the product to your specific requirements. Whether you need a single piece for field testing or bulk orders for fleet maintenance, our manufacturing capacity supports quick turnaround.
[FAQ Section]
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Q: Is the 17mm size available in other length options?
A: Yes, we offer a range of extra-long lengths from 300mm to 600mm (and beyond on request). The 17mm opening remains consistent; custom sizing for other hex dimensions is also supported. -
Q: Can the offset angle be customized?
A: Absolutely. While standard offset is 15° or 30°, we can manufacture angles between 10° and 45° depending on your specific clearance needs. Please contact our sales team with your requirements. -
Q: How does the non-slip grip perform in oily conditions?
A: The diamond knurled surface is specifically designed to channel oil away from contact points, maintaining friction even when hands or gloves are greasy. This feature has been validated in real-world oil rig applications. -
Q: What material is the wrench made of? Is it rust-proof?
A: It is forged from drop-forged chrome-vanadium steel, then heat-treated and coated with black oxide for corrosion resistance. While not stainless steel, the finish provides strong protection against rust in marine environments. For extreme corrosion conditions, we can apply additional coatings such as zinc plating or DLC. -
Q: Can I use a hammer on the striking face without damaging the tool?
A: Yes, the integral striking head is designed for repeated impact with a steel hammer (up to 2 kg). The forged construction ensures no chipping or cracking under normal heavy-duty use. -
Q: What is the minimum order quantity (MOQ) for this wrench?
A: MOQ is flexible. For standard models, we accept orders as low as 10 pieces for sample testing. For custom specifications, MOQ may be higher depending on complexity. Please inquire for details. -
Q: Do you provide certification or test reports?
A: Yes, we can provide material test reports, dimensional inspection reports, and hardness certificates upon request. While we do not claim third-party certifications unless explicitly required, our in-house quality system ensures consistent conformance to industry standards. -
Q: How is the wrench packaged for export?
A: Each wrench is individually wrapped in anti-rust paper and placed in a sturdy carton or wooden case, depending on quantity. Bulk orders can be packed per customer’s specifications. We ship via Tianjin, Shanghai, or Ningbo ports.
Trust the expertise of Cangzhou Dean Safety & Special Tools Co., Ltd. With over two decades of manufacturing excellence, annual exports surpassing US$100 million, and a global customer base spanning North America, South America, Europe, Asia, Africa, and Oceania, we understand the rigorous demands of oil rig maintenance. Our wrenches are used in some of the most challenging environments, and continuous feedback drives our innovation.
We invite you to experience the difference of a tool built for real-world conditions. Whether you are replacing a standard wrench set or sourcing for a new offshore project, the Extra Long Offset Striking Hex Wrench 17mm will exceed your expectations. Contact our sales team today for a quote, sample request, or technical discussion. Let us help you keep your operations running safely and efficiently.
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