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Help Center13-Piece Non-Sparking Double Box Offset Wrench Set, for Mining & Chemical Industry, Anti-Corrosion Coating,Size:5.5*7-30*32 mm
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As a leading manufacturer of safety tools since 2001, Cangzhou Dean Safety&Special Tools Co.,Ltd brings you the 13-Piece Non-Sparking Double Box Offset Wrench Set – a professional-grade solution designed for critical environments like mining, chemical processing, and oil & gas facilities. Each wrench is crafted from premium beryllium copper or aluminum bronze alloys, eliminating the risk of sparks when used near flammable gases, vapors, or dusts. The set covers a wide range of fasteners from 5.5*7 mm to 30*32 mm, ensuring you have the right tool for every critical application.
Our extensive experience in exporting over US$100 million annually to more than 60 countries guarantees that every tool meets the highest industrial standards. The anti-corrosion coating adds an extra layer of protection in harsh chemical environments, prolonging the tool's lifespan and maintaining reliable performance. Whether you work in a confined space or need to access recessed bolts, the offset design of both box ends provides exceptional leverage and clearance.
Key Features and Technical Specifications:
- Non-Sparking Safety: Made from non-ferrous alloys (beryllium copper or aluminum bronze) – ideal for Zone 1/2 hazardous areas.
- Double Box Offset Design: 15° offset angle on both ends allows easy access to fasteners in tight spots.
- Anti-Corrosion Coating: Resists moisture, acids, alkalis, and other corrosive agents common in chemical plants.
- 13-Piece Comprehensive Set: Covers 11 common sizes: 5.5×7, 6×7, 8×10, 9×11, 10×12, 11×13, 12×14, 14×15, 16×18, 17×19, 19×22, 22×24, 24×27, 27×30, 30×32 mm (actual sizes vary per set).
- Ergonomic Grip: Smooth polished handles reduce hand fatigue during prolonged use.
- High Torque Capacity: Each wrench is heat-treated to ensure strength and durability under high load.
- Compliance: Manufactured in accordance with recognized safety standards – certification available upon request.
| Wrench Size (mm) | Length (mm) | Weight (g) |
|---|---|---|
| 5.5 × 7 | 120 | 45 |
| 10 × 12 | 170 | 95 |
| 19 × 22 | 240 | 210 |
| 27 × 30 | 290 | 310 |
| 30 × 32 | 310 | 365 |
Detailed Advantages:
- Safety First: Non-sparking property prevents ignition in explosive atmospheres – a must-have for mining, petrochemical, and pharmaceutical industries.
- Versatility: Each wrench features two different size openings (e.g., 5.5×7) to maximize utility without increasing tool count.
- Offset Design: The 15° offset provides better knuckle clearance and easier access to fasteners that are recessed or close to walls.
- Corrosion Resistance: The special coating withstands salt spray, acidic fumes, and alkaline solutions, ensuring long service life even in harsh conditions.
- Cost-Effective: Purchasing a 13-piece set is more economical than buying individual wrenches, while offering a complete range for most maintenance tasks.
- Easy Identification: Each tool is laser-marked with size and part number for quick selection.
At Cangzhou Dean Safety&Special Tools Co.,Ltd, we have been dedicated to manufacturing high-quality safety tools since 2001. Our annual export value exceeds US$100 million, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major ports including Tianjin, Shanghai, and Ningbo, ensuring fast and reliable delivery worldwide. This 13-Piece Non-Sparking Double Box Offset Wrench Set is the result of decades of R&D and field feedback – a reliable partner for professionals who cannot compromise on safety.
We stand behind the quality of every tool, offering a satisfaction guarantee and responsive customer support. Whether you need standard sizes or custom configurations, our team is ready to assist. Choose Dean Safety for tools that protect your people and your assets. Contact us today for a quote or more information.
Frequently Asked Questions (FAQ)
-
Q: What materials are these wrenches made of?
A: They are manufactured from beryllium copper or aluminum bronze alloys – both are non-sparking and non-magnetic. The material choice can be customized based on your specific safety requirements. -
Q: Are these wrenches suitable for use in explosive gas atmospheres?
A: Yes, they are designed for use in hazardous locations where flammable gases, vapors, or dusts are present. They meet the non-sparking requirements for Zone 1 and Zone 2 areas. -
Q: How do I clean and maintain the anti-corrosion coating?
A: Simply wipe the tools with a clean cloth after use. Avoid abrasive cleaners. The coating is designed to withstand most industrial chemicals; however, prolonged exposure to strong acids should be avoided. Rinse with water if contaminated. -
Q: Is there a warranty on this wrench set?
A: We offer a 12-month warranty against manufacturing defects. For specific warranty terms, please contact us. Customized sets may have adjusted warranty periods. -
Q: Can I get the wrenches with different size combinations?
A: Yes, we offer customization – you can choose any size range or select individual wrenches. Minimum order quantities may apply. Contact our sales team for details. -
Q: How many wrenches are in the set and what sizes are included?
A: The set includes 13 wrenches covering sizes from 5.5*7 mm to 30*32 mm. A full size chart is provided in the product description above, or upon request. -
Q: Is the offset angle the same for both ends?
A: Yes, both box ends feature a 15° offset, providing identical leverage and access from either side. -
Q: Do you have certificates like CE or ATEX?
A: We can provide certificates upon request after order confirmation. Our tools are manufactured according to applicable safety standards; please inquire for specific certifications needed for your region.
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