PROTO Open End Wrench: Alloy Steel, Satin, 1/4 in_5/16 in Head Size, 4 31/64 in Overall Lg
The PROTO Open End Wrench is an SAE double-end open end wrench made from alloy steel with a satin finish. It features head sizes of 1/4 in and 5/16 in, with an overall length of 4 31/64 in. The manufacturer part…
SKU 3G-OTH-284825
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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 satin finish. It features head sizes of 1/4 in and 5/16 in, with an overall length of 4 31/64 in. The manufacturer part number is J3018.
Frequently Asked Questions
What is the PROTO J3018 open end wrench used for?
The PROTO J3018 open end wrench is used for tightening or loosening SAE hex fasteners with 1/4 in and 5/16 in head sizes. It is commonly applied in automotive repair, machinery maintenance, and industrial assembly where a double-end design provides two size options in one tool.
What are the specifications of the PROTO J3018 open end wrench?
The PROTO J3018 is an SAE double-end open end wrench made from alloy steel with a satin finish. It has head sizes of 1/4 in and 5/16 in, an overall length of 4 31/64 in, and a standard length. The manufacturer part number is J3018.
Where to buy the PROTO J3018 open end wrench worldwide?
You can source the PROTO J3018 open end wrench through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this PROTO tool.
How to maintain a PROTO open end wrench?
To maintain a PROTO open end wrench, clean it after use with a dry cloth to remove grease and debris. Store in a dry environment to prevent corrosion. For the satin finish, avoid abrasive cleaners. Periodically inspect the jaws for wear or distortion to ensure safe operation.
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.















