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Home > Tools & Hardware > Hand Tools > Wrench > Double-ended Open-end Wrench 1/4-1 Inch (6.35-25.4mm) CR-MO Steel Industrial Grade Heavy Duty
Double-ended Open-end Wrench 1/4-1 Inch (6.35-25.4mm) CR-MO Steel Industrial Grade Heavy Duty
Product Spotlights
Industrial-grade double-ended open-end wrench made from CR-MO steel, covering 1/4" to 1" (6.35-25.4mm). Heat-treated to HRC 45-52, with 15° offset for tight access. Black phosphate or mirror finish. Custom branding and packaging available from a trusted manufacturer with over 20 years of export experience.
US$ 22
≥20 Units
Key Specifications
Get Latest Price
Material:
Other, Chrome Molybdenum (CR-MO) steel
Brand:
Other, Dean Tool / OEM available
size_range:
1/4-1 inch (6.35-25.4mm)
Payment & Shipping
Payment Methods:
Port of Shipment:
TIANJIN
Delivery Detail:
5 days
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Material
Other, Chrome Molybdenum (CR-MO) steel
Brand
Other, Dean Tool / OEM available
size_range
1/4-1 inch (6.35-25.4mm)
product_type
Double-ended open-end wrench
color
Black phosphate finish / Silver (optional)
application
Automotive, machinery maintenance, construction, industrial repair
hardness
HRC 45-52 (as per standard)
surface_finish
Mirror polish / Black phosphate (customizable)
packing
Blister pack, PVC hanger, or customized
Introducing the Double-ended Open-end Wrench 1/4-1 inch (6.35-25.4mm) — a premium industrial-grade tool engineered for professionals who demand reliability and strength. Manufactured by Cangzhou Dean Safety & Special Tools Co., Ltd (est. 2001), a trusted global supplier with annual exports exceeding US$100 million, this wrench is forged from high-quality CR-MO (Chrome Molybdenum) steel, ensuring exceptional durability and torque resistance. Whether you're a mechanic, maintenance engineer, or industrial technician, this wrench delivers precise fit and solid performance across a wide range of fasteners.
Key Features & Technical Specifications
- Material Excellence: Made of CR-MO steel (alloy 40CrMo or equivalent), heat-treated to achieve hardness of HRC 45-52, providing excellent wear resistance and strength under heavy loads.
- Complete Size Range: Covers 12 common sizes from 1/4" to 1" (6.35mm to 25.4mm) — an ideal set for both SAE and metric applications. Each size is clearly laser-marked for quick identification.
- Double-End Design: Each wrench features two different size openings on each end, maximizing utility and reducing the number of tools needed in your kit.
- Ergonomic & Safe: The 15-degree offset angle provides better clearance and comfort when working in tight spaces. Smooth, rounded edges protect hands and fasteners.
- Surface Finish Options: Offered in mirror-polished chrome (for corrosion resistance) or black phosphate coating (for reduced glare and enhanced grip in oily conditions). Custom finishes available upon request.
- Industrial-Grade Construction: Designed for heavy-duty daily use — tested to withstand high torque without deformation.
- Packaging: Available in blister packs, plastic roll-up pouches, or PE bag; also offered as bulk OEM orders.
Detailed Parameter Table
| Specification | Value |
|---|---|
| Size Range (inch) | 1/4" – 1" |
| Size Range (mm) | 6.35 – 25.4 mm |
| Material | CR-MO Steel (40CrMo) |
| Hardness (HRC) | 45 – 52 |
| Finishes Available | Mirror polished / Black phosphate / Sandblast |
| Angle | 15° offset on both ends |
| Packing Options | Blister card, PVC hanger, roll-up pouch, bulk |
| Application | Automotive, machinery, plumbing, construction, industrial |
| OEM Service | Available (branding, packaging, custom sizes) |
Benefits to Your Business
- Cost Efficiency: One wrench covers two sizes — you need fewer tools, saving money and space.
- Long Service Life: CR-MO steel withstands heavy use without chipping or cracking, reducing replacement costs.
- Versatility: Ideal for both SAE and metric fasteners (when used with the appropriate conversion).
- Professional Grade: Trusted by mechanics and engineers worldwide — suitable for demanding environments like factories, shipyards, and oil fields.
- Easy to Order: We offer flexible packaging and OEM branding to meet your market needs.
Trust & Credibility
Cangzhou Dean Safety & Special Tools Co., Ltd has been a reliable manufacturing partner since 2001. With annual exports surpassing US$100 million, we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. Our factory is located in Cangzhou, Hebei, China — a major hardware tool production hub. We ship from major ports: Tianjin, Shanghai, and Ningbo. Every wrench undergoes strict quality control, including hardness testing, dimensional inspection, and torque testing. We invite you to contact us for samples, customized solutions, or bulk orders. Choose Dean Tool — choose consistent quality and global service.
Frequently Asked Questions
-
Q: Is this wrench set metric or SAE?
A: The set covers SAE sizes from 1/4" to 1". The metric equivalent range is 6.35mm to 25.4mm. If you need purely metric sizes, we offer customizable options. -
Q: What is the difference between CR-MO steel and Chrome Vanadium (CR-V)?
A: CR-MO (Chrome Molybdenum) offers higher toughness and impact resistance compared to CR-V, making it ideal for heavy-duty industrial use where greater torque is applied. -
Q: Can I get the wrenches with my own brand logo?
A: Yes, we provide OEM service. You can choose laser engraving, stamping, or printing on the wrench body. Minimum order quantity applies — please inquire. -
Q: Are these wrenches suitable for automotive work?
A: Absolutely. They are commonly used in automotive repair, especially for suspension, brake, and engine components where double-end convenience saves time. -
Q: Do you offer a warranty?
A: We stand behind our products with a standard warranty against manufacturing defects. Details can be discussed per order. -
Q: How are the wrenches packaged for export?
A: We offer blister cards, PVC hangers, plastic pouches, or bulk packaging with inner boxes. Custom export packaging is available to suit your retail or wholesale needs. -
Q: What is the lead time for a standard order?
A: For stock items, shipment can be arranged within 7-15 days after payment. For OEM orders, typical lead time is 20-30 days depending on quantity. -
Q: Can I request a sample before placing a bulk order?
A: Yes, samples are available. Please contact our sales team for sample cost and shipping details.
Send Inquiry to This Supplier
Ms. Jesse
Foreign Trade Manager
1Yr
Cangzhou, Hebei, China
1Yr
Business Type
Manufacturer
Year Established
2001
Annual Export Value
Above US$100 Million
Port of Shipment
tianjin, shanghai, ningbo
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