PROTO Open End Wrench: Alloy Steel, Chrome, 5/8 in Head Size, 6 in Overall Lg
The PROTO Open End Wrench is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 5/8 in head size and a 6 in overall length, with manufacturer part number J3120.
SKU 3G-OTH-284782
Also listed as: J 3120 · J-3120
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The PROTO Open End Wrench is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 5/8 in head size and a 6 in overall length, with manufacturer part number J3120.
Frequently Asked Questions
What is the PROTO Open End Wrench J3120 used for?
The PROTO Open End Wrench J3120 is used for tightening or loosening hex fasteners in industrial maintenance, automotive repair, and mechanical assembly. Its SAE double-end design with a 5/8 in head size suits standard U.S. fasteners. The alloy steel construction and chrome finish provide corrosion resistance and durability in shop and field environments.
What are the specifications of the PROTO J3120 wrench?
The PROTO J3120 is an SAE double-end open end wrench made from alloy steel with a chrome finish. It has a 5/8 in head size and a 6 in overall length. The manufacturer part number is J3120. It is not a ratcheting or flex-head tool. PROTO is the OEM brand for this wrench.
Where to buy the PROTO J3120 wrench worldwide?
3G Electric supplies the PROTO J3120 open end wrench to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine PROTO tools for industrial applications.
How to select the right PROTO open end wrench size?
To select the correct PROTO open end wrench, match the wrench head size to the fastener hex dimension. For the J3120, the 5/8 in head fits a 5/8 in hex nut or bolt. Ensure the wrench length (6 in) provides adequate leverage for the torque required. Always use the proper size to avoid rounding fasteners.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
