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Help CenterS2 Steel Convex Striking Hex Wrench, 10-41mm, 56-60 HRC, Hex Shank for Impact Wrench
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As a leading manufacturer from Cangzhou Dean Safety&Special Tools Co., Ltd (established in 2001), we proudly present our S2 Steel Convex Striking Hex Wrench – a precision tool engineered for high-torque applications. With an annual export value exceeding US$100 million, our products are trusted by professionals across North America, South America, Europe, Asia, and Africa. This wrench combines superior S2 steel metallurgy with a specialized convex striking face and hex shank, delivering unmatched durability and efficiency for impact wrench users.
Our convex striking hex wrench is designed to withstand extreme forces while maintaining precise engagement with fasteners. The 10-41mm size range covers a wide variety of bolts and nuts, making it ideal for heavy equipment maintenance, automotive repair, and industrial assembly. Each wrench undergoes rigorous heat treatment to achieve a consistent hardness of 56-60 HRC, ensuring long-term resistance to deformation and wear.
Key Features & Technical Specifications
- S2 Steel Construction: High-carbon alloy steel with excellent impact toughness and fatigue resistance, ideal for repeated striking.
- Convex Striking Face: Rounded convex design reduces edge chipping and distributes impact force evenly, minimizing fastener damage.
- Hex Shank Compatibility: Precision-machined 1/2" or 3/4" hex shank (optional) fits standard impact wrenches securely, preventing slippage during operation.
- Hardness Range: 56-60 HRC – optimized balance between hardness and toughness for prolonged service life.
- Size Marking: Each wrench features laser-etched size markings for quick identification, even in low-light conditions.
- Surface Treatment: Polished finish with optional black oxide or phosphate coating for corrosion resistance.
| Parameter | Specification |
|---|---|
| Material | S2 Steel (Chromium-Vanadium alloy equivalent) |
| Available Sizes | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41 mm |
| Hardness | 56-60 HRC (Rockwell C scale) |
| Shank Type | Hex shank (1/2" or 3/4" optional) |
| Finish | Polished, black oxide or phosphate (optional) |
| Applicable Tools | Impact wrenches, pneumatic wrenches, torque wrenches |
Customer Benefits
- Enhanced Safety: The convex striking face reduces the risk of edge fractures and flying debris, protecting operators.
- Increased Productivity: Precisely machined hex shank ensures quick attachment and minimal downtime during tool changes.
- Long Service Life: With 56-60 HRC hardness and S2 steel, this wrench withstands thousands of impacts without deformation.
- Versatility: Covers metric sizes from 10mm to 41mm, suitable for various industrial applications including heavy machinery, automotive, and construction.
- Cost-Effective: Reduces replacement frequency compared to standard carbon steel wrenches, offering excellent ROI.
Our manufacturing facility in Cangzhou, Hebei, utilizes advanced CNC machining and heat treatment furnaces to ensure consistent quality. Every wrench is inspected for dimensional accuracy and hardness before shipment. We support customization options such as laser engraving logos, custom size sets, and specialized packaging.
Since 2001, Cangzhou Dean Safety&Special Tools Co., Ltd has been a trusted partner for global buyers. With annual exports over US$100 million and a broad presence in markets like North America, South America, Eastern Europe, and Africa, we bring decades of expertise to every product. Our convex striking hex wrench is backed by rigorous quality control, competitive pricing, and reliable shipping from Tianjin, Shanghai, or Ningbo ports. Choose our S2 steel wrench for a durable, efficient solution that meets the demands of professional impact wrench users. Contact us today for pricing, samples, or custom orders!
Frequently Asked Questions (FAQ)
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Q: What is the difference between a convex striking wrench and a standard striking wrench?
A: A convex striking wrench has a rounded, slightly domed striking face that distributes impact force more evenly, reducing chipping and extending tool life, while standard flat-face wrenches may deform under repeated heavy impacts. -
Q: Can this wrench be used with a regular hand socket wrench?
A: Yes, the hex shank can be used with hand tools or impact wrenches, but it is specifically optimized for impact applications due to its hardness and geometry. -
Q: What hardness range does this wrench have?
A: Our S2 steel convex striking hex wrench is heat-treated to 56-60 HRC, providing a balance of strength and toughness for demanding tasks. -
Q: Are custom size sets available?
A: Yes, we offer customizable size ranges and sets. Please contact us with your requirements for a tailored solution. -
Q: Is the wrench resistant to corrosion?
A: The standard polished finish offers basic corrosion resistance. For harsher environments, optional black oxide or phosphate coatings are available. -
Q: What is the typical lead time for bulk orders?
A: Lead times vary based on quantity and customization, but typically 15-30 days after order confirmation. We also stock popular sizes for faster dispatch. -
Q: Do you provide samples for testing?
A: Yes, sample orders are welcome. Please contact our sales team to discuss sample availability and shipping costs. -
Q: Which ports do you ship from?
A: We ship from Tianjin, Shanghai, or Ningbo ports, depending on destination and cargo volume.
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