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Help CenterOffset Striking Hex Wrench Set 8 Piece Metric Sizes 8-24mm Drop Forged Steel Heat Treated for High Torque
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Welcome to Cangzhou Dean Safety & Special Tools Co., Ltd. – a trusted manufacturer with over two decades of experience (established in 2001) and an annual export value exceeding US$100 million. We are proud to present our Offset Striking Hex Wrench Set 8 Piece Metric Sizes 8-24mm, engineered for professionals who demand uncompromising strength and reliability. Crafted from drop forged steel and heat treated for high torque applications, this set delivers exceptional performance in heavy-duty maintenance, construction, and industrial bolting tasks. Whether you're tightening large flange bolts or working in tight spaces, our offset striking wrenches provide the leverage and impact resistance you need to get the job done efficiently.
Product Overview & Key Features
This 8-piece metric hex wrench set covers the most commonly used sizes from 8mm to 24mm, offering a versatile solution for mechanics, riggers, and plant maintenance crews. Each wrench features an offset design that allows clear striking with a hammer or sledge, making it ideal for breaking loose stubborn fasteners or applying final torque. The drop forging process ensures uniform grain flow and high density, while the subsequent heat treatment (quenching and tempering) achieves a hardness of HRC 38-45, balancing wear resistance with toughness to prevent chipping or deformation under heavy loads.
- Material Excellence: Made from high-grade drop forged steel, ensuring long-lasting durability and resistance to bending or breaking.
- Precision Hex Openings: Machined to tight tolerances for a secure fit on hex nuts and bolts, reducing slippage and rounding.
- Heat Treated for High Torque: Uniform tempering provides optimal hardness and toughness, capable of withstanding repeated heavy strikes.
- Offset Handle Design: The angled offset allows the wrench to lie flat against the work surface, enabling easy hammer access and increased leverage.
- Corrosion Protection: Optional black oxide finish offers resistance to rust and improves grip in oily or wet conditions.
- Complete Set Coverage: Includes 8 sizes: 8, 10, 12, 14, 17, 19, 22, and 24 mm – the most frequently used metric hex sizes in industrial applications.
- Compact Storage: Each wrench is clearly marked with its size and comes in a durable canvas roll or metal clip (depending on order) for organized storage and quick transport.
Detailed Technical Specifications
| Specification | Details |
|---|---|
| Total Pieces | 8 |
| Size Range (Metric) | 8, 10, 12, 14, 17, 19, 22, 24 mm |
| Material | Drop Forged Carbon Steel (Grade 45 or equivalent) |
| Hardness (HRC) | 38-45 |
| Surface Finish | Black Oxide (standard), or as per request |
| Wrench Offset Angle | Approximately 15° (optimized for striking) |
| Weight (set) | Approx. 3.2 kg (depending on packing) |
| Packing Options | Canvas roll, pouch, or plastic clip (customizable) |
Why Choose Our Offset Striking Hex Wrenches?
- Enhanced Torque Transfer: The striking face is designed to absorb heavy blows from hammers (up to 5 lbs / 2.3 kg) without cracking, thanks to the controlled heat treatment.
- Time Savings: Offset design lets you strike directly on the wrench head, reducing the need for multiple adjustments and speeding up bolt rundown.
- Versatile Use: Perfect for oil & gas pipeline flanges, heavy machinery assembly, mining equipment maintenance, shipbuilding, and construction scaffolding.
- Customizable Sizes: We can adjust the set composition (e.g., add 21mm or 27mm) or produce individual wrenches to match your specific inventory needs.
- Consistent Quality: Every batch is inspected for dimensional accuracy, hardness uniformity, and surface finish to ensure reliable performance on the job.
Trusted by Global Industries
Since 2001, Cangzhou Dean Safety & Special Tools has been a reliable OEM/ODM manufacturer serving clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic markets. With an annual export value exceeding US$100 million, we have built a reputation for delivering high-quality tools that meet the rigorous demands of professional users. Our factory is located in Cangzhou, Hebei, China, with convenient shipping via Tianjin, Shanghai, or Ningbo ports. We offer flexible payment terms and rapid turnaround times for both standard and customized orders.
Order today and experience the difference of a tool set designed for maximum torque and durability. Contact our sales team for bulk pricing, custom packaging, or technical specifications. Your satisfaction is our priority, and we stand behind every wrench we produce.
Frequently Asked Questions (FAQ)
Q1: What sizes are included in this 8-piece set?
A: The set contains metric hex wrenches in 8, 10, 12, 14, 17, 19, 22, and 24 mm. These are the most common industrial sizes for flange bolts and heavy equipment.
Q2: Can I use these wrenches with a power tool?
A: No, these are designed for manual striking with a hammer. The offset shape provides a flat surface for precise hits. Using impact wrenches may damage the hexagonal opening or the tool itself.
Q3: Are the wrenches hardened enough for daily heavy use?
A: Yes, they are heat treated to HRC 38-45, offering an excellent balance of hardness and toughness. This prevents the wrench from deforming under repeated high-force strikes.
Q4: Is it possible to get only specific sizes instead of the full set?
A: Absolutely. We can customize the set composition or produce single wrenches as per your requirements. Please contact our sales team with your specifications.
Q5: What is the steel grade used?
A: We use drop forged carbon steel (typically grade 45 or equivalent) that provides high strength and durability. Detailed material certificates are available upon request.
Q6: How is the surface finish protected against rust?
A: The standard finish is black oxide, which offers moderate corrosion resistance. For more demanding environments, we can apply oil coating, phosphating, or other finishes as needed.
Q7: Can I get a roll or pouch to store the wrenches?
A: Yes, we offer various packing options: canvas roll, heavy-duty nylon pouch, or metal clip. Custom branding/logo printing is also available for bulk orders.
Q8: What is the typical lead time for this set?
A: For standard sets in stock, delivery takes about 7–15 days after payment. Custom orders usually require 20–30 days, depending on quantity and complexity.
Still have questions? Our technical team is ready to assist. Request a quote or sample to see the quality firsthand. We look forward to building a long-term partnership with you.
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