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Help Center11-Piece Double Box Offset Wrench Set, Non-Sparking, Bronze Alloy,Size:8*10-30*32 mm
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At Cangzhou Dean Safety & Special Tools Co., Ltd., we have specialized in manufacturing high-quality safety tools since 2001. Our 11-Piece Double Box Offset Wrench Set is crafted from premium bronze alloy to provide reliable non-sparking performance in hazardous working environments. With an annual export value exceeding US$100 million, our products are trusted by professionals across North America, South America, Europe, Asia, Africa, and Oceania. This wrench set is the ideal solution for industries where safety and durability are non-negotiable.
The set covers a comprehensive size range from 8×10 mm to 30×32 mm, ensuring you have the right tool for various fastener applications. Each wrench features a 15° offset double box end design, allowing easy access to recessed or obstructed bolts. Made from non-sparking bronze alloy, these wrenches eliminate the risk of ignition in flammable atmospheres such as oil refineries, chemical plants, mines, and grain silos. The material also offers excellent corrosion resistance, making them suitable for marine and offshore environments.
Key Features & Benefits
- Non-Sparking & Safe: Bronze alloy prevents sparks upon impact, meeting international safety standards for explosive atmospheres.
- Durable Build: High-strength alloy withstands heavy torque without deformation or cracking.
- Offset Design: 15° angled box ends provide better leverage and clearance in tight spaces.
- Complete Set: 11 pieces cover common sizes from 8×10 up to 30×32 mm, reducing the need for multiple sets.
- Corrosion Resistant: Ideal for humid, salty, or chemically aggressive environments.
- Comfort Grip: Smooth, polished surface for comfortable handling even during prolonged use.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Bronze Alloy (Aluminum Bronze or Beryllium Copper available) |
| Number of Pieces | 11 |
| Size Range | 8×10 mm, 10×11 mm, 12×13 mm, 14×15 mm, 16×17 mm, 17×19 mm, 19×21 mm, 21×23 mm, 23×24 mm, 24×27 mm, 30×32 mm |
| Offset Angle | 15° |
| Hardness (HRB) | ≥ 80 (depending on alloy) |
| Magnetic | Non-magnetic (optional) |
Each wrench is precision-machined and inspected to ensure accurate sizing and smooth operation. The offset design reduces knuckle-busting incidents and increases torque application efficiency. Our manufacturing facility in Cangzhou, Hebei is equipped with advanced forging and heat-treatment technologies, ensuring consistent quality across all pieces.
Why Choose Dean Safety?
- 22+ Years of Experience: Since 2001, we have focused solely on safety and special tools, gaining deep industry insights.
- Global Reach: Yearly export revenue exceeds US$100 million, serving clients in over 50 countries and regions.
- Customization Available: We can tailor sets, packaging, and even material composition to meet your specific requirements.
- Strict Quality Control: Each tool undergoes dimensional, hardness, and non-sparking tests before shipment.
- Reliable Logistics: Shipments from major ports (Tianjin, Shanghai, Ningbo) with prompt delivery worldwide.
Whether you are in the oil & gas, petrochemical, mining, or pharmaceutical industry, this 11-Piece Double Box Offset Wrench Set provides the safety and performance you need. Contact us today to discuss your requirements, request a quote, or learn about our OEM/ODM capabilities. Our team is ready to support your operations with high-quality non-sparking tools.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between bronze alloy wrenches and regular steel wrenches?
A: Bronze alloy wrenches are non-sparking, meaning they produce no sparks when struck against metal or stone, making them safe for use in explosive environments. They are also more resistant to corrosion than typical steel tools. -
Q: Are these wrenches suitable for use in underwater or marine environments?
A: Yes. The bronze alloy offers excellent corrosion resistance, making them ideal for marine, offshore, and coastal installations. We also offer beryllium copper variants for even higher corrosion protection. -
Q: Can I get custom sizes or configurations?
A: Absolutely. We provide customization in terms of size combinations, packaging (roll pouch, metal case, etc.), and even material composition (aluminum bronze or beryllium copper). Please contact our sales team with your requirements. -
Q: How do I verify the non-sparking property of these tools?
A: We can provide a material test report (MTR) upon request, and each batch is tested for spark resistance. The tools should be used in accordance with industry guidelines; they are designed to minimize ignition risk, but no tool is 100% safe if misused. -
Q: What is the delivery time for this set?
A: For standard sets, typical lead time is 15-25 days. For custom orders, lead time may vary from 30-45 days depending on complexity. We ship via sea, air, or express from Tianjin, Shanghai, or Ningbo ports. -
Q: Do these wrenches come with a warranty?
A: Yes, we offer a 12-month warranty against manufacturing defects. Our after-sales team is responsive and dedicated to resolving any issues quickly. -
Q: What are the main use cases for offset box wrenches compared to standard wrenches?
A: Offset box wrenches are specifically designed to access fasteners that are recessed or located in tight spaces where a straight wrench cannot fit. The 15° offset provides better clearance and reduces the need for repositioning. -
Q: Is this set compatible with both metric and SAE fasteners?
A: This set is metric only (mm sizes). If you require SAE sizes, we can produce custom sets upon request. Please specify your needs.
With over two decades of expertise and a proven track record of serving global markets with premium safety tools, Cangzhou Dean Safety & Special Tools Co., Ltd. is your trusted partner. Our 11-Piece Double Box Offset Wrench Set in bronze alloy embodies the quality and safety you deserve. Contact us today to place your order or request a sample. We look forward to supporting your operations with reliable, non-sparking solutions.
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