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Help CenterHeavy Duty Offset Striking Hex Wrench 3/8-1-1/2 Inch Chrome Molybdenum Steel Manganese Phosphate Coating
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As a leading manufacturer with over 20 years of expertise, Cangzhou Dean Safety&Special Tools Co., Ltd proudly presents our Heavy Duty Offset Striking Hex Wrench — a professional-grade tool engineered for the most demanding industrial environments. Crafted from premium Chrome Molybdenum Steel with a robust Manganese Phosphate coating, this wrench delivers exceptional strength, corrosion resistance, and long service life. Whether you are working on heavy machinery, pipeline maintenance, or construction equipment, our offset striking wrench provides the leverage and durability you need to tackle stubborn fasteners efficiently.
Product Overview
- Material: Chrome Molybdenum Steel (Cr-Mo) — known for high tensile strength and impact resistance.
- Size Range: Available from 3/8" up to 1-1/2", covering a wide variety of fastener sizes.
- Surface Treatment: Manganese Phosphate coating — provides excellent anti-rust properties and reduces friction.
- Design: Offset striking head — allows for better access in tight spaces and enables use with a hammer for extra torque.
- Finish: Matte black / dark gray appearance, non-reflective for safety in bright work areas.
| Specification | Value |
| Material | Chrome Molybdenum Steel (4140/4340 equivalent) |
| Hardness | HRC 40–45 (heat-treated) |
| Coating Thickness | 0.0005–0.0015 inches |
| Size Range | 3/8", 1/2", 9/16", 5/8", 11/16", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2" |
| Offset Angle | Approximately 15° (offset from handle) |
| Weight per Piece (1" size) | ~1.8 lbs (0.82 kg) |
| Packing | Individually wrapped or sets available |
Key Features & Benefits
- Impact-Ready Design: The offset head is specifically designed to be struck with a heavy hammer without damage, allowing for high-torque application.
- Superior Durability: Chrome Molybdenum steel ensures the wrench can withstand repeated heavy impacts without cracking or deforming.
- Corrosion Protection: Manganese phosphate coating not only protects against rust but also provides a non-slip surface for a secure grip.
- Versatile Application: Ideal for use on flanges, heavy equipment, oil rigs, and construction sites where standard hex keys fail.
- Precision Manufacturing: Each wrench is hot-forged and heat-treated for consistent hardness and dimensional accuracy.
- Easy Identification: Laser-etched size marking permanently engraved on the shaft for quick selection.
Why Choose Cangzhou Dean Safety&Special Tools Co., Ltd?
Established in 2001, we have grown into a trusted manufacturer with an annual export value exceeding US$100 Million. Our products are shipped to major ports including Tianjin, Shanghai, and Ningbo, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. With a dedicated R&D team and strict quality control, we ensure every wrench meets rigorous international standards. Our heavy duty offset striking hex wrench is a testament to our commitment to providing reliable, high-performance tools for professionals worldwide.
Frequently Asked Questions (FAQ)
-
Q: Can this wrench be used with power tools?
A: No, this wrench is designed for manual striking with a hammer or sledgehammer. It is not intended for use with power impact tools, which may cause damage. -
Q: What is the maximum torque I can apply?
A: There is no specific torque rating, as it depends on the hammer weight and striking force. However, the Chrome Molybdenum steel construction ensures a high safety margin for typical industrial striking tasks. -
Q: Is the wrench available in metric sizes?
A: Yes, we offer metric sizes upon request. Please contact our sales team for custom size availability. -
Q: How should I maintain the manganese phosphate coating?
A: After use, wipe the wrench clean with a dry cloth. If exposed to moisture, lightly oil the surface to maintain corrosion resistance. -
Q: Do you offer a warranty?
A: Yes, we provide a limited warranty against manufacturing defects. Please refer to our warranty policy for details. -
Q: Can I order a mixed set of different sizes?
A: Absolutely. Custom sets and bulk orders are welcome. We can package according to your requirements. -
Q: What is the approximate weight of a full set (3/8" – 1-1/2")?
A: A full set of 12 pieces weighs approximately 25–30 lbs (11–14 kg), depending on the exact configuration. -
Q: Is the offset angle the same for all sizes?
A: Yes, the offset angle is consistently around 15° for all sizes in this product line, ensuring uniform leverage.
For over two decades, our factory in Cangzhou, Hebei has been delivering innovative solutions for the safety and special tools industry. With an annual export value exceeding US$100 Million and a global customer base, you can trust the quality and reliability of our heavy duty offset striking hex wrench. Contact us today to place an order or request a quote — we are committed to supporting your toughest applications with the right tools.
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