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Help Center45# Steel Bent Striking Open End Wrench, Industrial Grade Bent Striking Spanner，Bent Impact Wrench
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Welcome to Cangzhou Dean Safety & Special Tools Co., Ltd. Since 2001, we have been a dedicated manufacturer of industrial-grade striking tools, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. Our 45# Steel Bent Striking Open End Wrench (also known as Industrial Grade Bent Striking Spanner or Bent Impact Wrench) is engineered to deliver unmatched torque and durability in the toughest working environments. This tool is a must-have for heavy machinery maintenance, oil and gas operations, shipbuilding, and construction where conventional wrenches fail to provide enough force. The bent head design allows easy access to recessed bolts, while the 45# steel construction ensures long service life under repeated heavy striking.
Product Features & Technical Specifications
- Premium 45# Steel Material: Heat-treated for optimal hardness and toughness, providing excellent resistance to deformation and breakage even under high-impact strikes.
- Bent Head Design: The angled opening (typically 15°–30°) enables users to apply torque from an offset position, making it ideal for confined spaces or bolts that are not directly accessible.
- Open End Configuration: Allows quick positioning onto hexagonal nuts or bolt heads, facilitating rapid loosening or tightening without full rotation clearance.
- Industrial Grade Construction: Manufactured with precision forging and controlled heat treatment processes to ensure consistent quality and reliability in heavy-duty applications.
- Customizable Size Range: Available in metric and imperial sizes from 8 mm to 55 mm (or larger upon request). Custom lengths and striking face dimensions can be arranged to meet specific user requirements.
- Optional Surface Finishes: Choose from plain oil finish, black oxide coating for corrosion resistance, or phosphate coating for enhanced grip and reduced friction.
- Safety Features: The striking end is reinforced to prevent spalling or chipping when hit with a sledgehammer or striking block. The wrench is designed to absorb shock without cracking.
- Weight and Dimensions: Vary by size; typical weight for a 30mm wrench is approximately 0.8 kg. Detailed weight chart available upon request.
| Size (mm) | Overall Length (mm) | Open End Width (mm) | Approx. Weight (kg) |
|---|---|---|---|
| 24 | 350 | 56 | 0.65 |
| 30 | 380 | 65 | 0.82 |
| 41 | 420 | 80 | 1.15 |
| 50 | 460 | 95 | 1.55 |
Performance Advantages: The bent striking open end wrench delivers up to 30% more torque application compared to straight-pattern wrenches when used with a striking tool, thanks to the optimized lever arm. The 45# steel core ensures that the tool withstands repeated impact without permanent deformation. This reduces downtime and replacement costs for industrial maintenance teams. Additionally, the open end design minimizes the risk of slipping off fasteners, providing a more secure grip during high-force applications.
Customer Benefits: By choosing our industrial bent striking spanner, you gain a reliable partner for demanding tasks such as pipeline assembly, mining equipment repair, and steel structure installation. The tool's ergonomic bent shape reduces user fatigue by allowing a more natural wrist position. Our optional surface treatments extend tool life in corrosive environments. Furthermore, we offer custom size and marking services to streamline inventory management for large facilities.
Trust Our Proven Track Record
Cangzhou Dean Safety & Special Tools Co., Ltd. has been a trusted manufacturer since 2001. With an annual export value exceeding US$100 Million, our products are shipped from Tianjin, Shanghai, and Ningbo ports to over 15 major markets worldwide, including North America, South America, Europe, Southeast Asia, Africa, and the Middle East. Our manufacturing facility in Cangzhou, Hebei, China, employs advanced forging and heat treatment technologies, backed by rigorous quality control at every production stage. We have supplied bent striking wrenches to leading companies in the petrochemical, power generation, and heavy equipment sectors. When you buy from Dean, you invest in over two decades of specialized experience, consistent product quality, and responsive customer service. Contact us today to place a trial order or request a detailed quote for your specific needs.
Frequently Asked Questions
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What is the difference between a bent striking wrench and a standard impact wrench?
A bent striking wrench is designed to be struck with a hammer or sledgehammer, providing a high-torque impact to loosen or tighten fasteners. Unlike a standard impact wrench that uses a powered mechanism, this tool is manual but extremely robust, suitable for use in explosive environments or where power tools are impractical. -
Can I use this wrench with a power tool?
No, this tool is intended for manual striking only. Using it with power tools could cause damage or injury. Always use a proper striking block or hammer as recommended. -
Are custom sizes available?
Yes, we can manufacture bent striking wrenches in custom sizes, lengths, and striking face diameters. Please provide your specifications for a tailored solution. -
What surface finish options do you offer?
We offer plain oil finish (standard), black oxide for moderate corrosion resistance, and phosphate coating for improved anti-slip properties. All options are designed to protect the tool during storage and use. -
How do I choose the correct size for my application?
Measure the hex flat-to-flat dimension of the nut or bolt head you intend to work with. The open end should exactly match that dimension. If you work with fasteners that have varying sizes, consider purchasing a set covering the most common sizes. -
Does the bent head angle affect torque?
Yes, the bent angle (typically 15°–30°) allows you to apply force from a different angle, which can improve leverage in confined spaces. However, the torque delivered ultimately depends on the force you apply to the striking end. Our design optimizes the balance between accessibility and strength. -
What is the typical lead time for bulk orders?
For standard sizes with common finishes, lead time is approximately 15–25 working days after confirmation. Custom sizes or special finishes may require 30–40 days. We recommend contacting our sales team for current lead times. -
Do you provide a warranty?
We stand behind the quality of our tools. Defective or damaged wrenches due to manufacturing errors will be replaced or repaired free of charge within one year from the date of shipment. Please refer to our warranty policy for full details.
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