PROTO J3021 SAE Double End Open End Wrench
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 3/8 inch and 7/16 inch, with an overall length of 5 3/4 inches. This standard wrench…
SKU 3G-OTH-284789
Also listed as: J 3021 · J-3021
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 satin finish. It features head sizes of 3/8 inch and 7/16 inch, with an overall length of 5 3/4 inches. This standard wrench is manufactured under part number J3021.
Frequently Asked Questions
What is the PROTO J3021 open end wrench used for?
The PROTO J3021 open end wrench is used for tightening or loosening SAE hex fasteners with 3/8 in and 7/16 in head sizes. It is commonly applied in automotive repair, industrial maintenance, and general mechanical work where a double-end open end wrench provides access to fasteners in tight spaces.
What are the specifications of the PROTO J3021 wrench?
The PROTO J3021 is an SAE double-end open end wrench made from alloy steel with a satin finish. It has head sizes of 3/8 in and 7/16 in, with an overall length of 5 3/4 in. This standard wrench is designed for durability and corrosion resistance in demanding industrial environments.
Where to buy the PROTO J3021 wrench worldwide?
You can source the PROTO J3021 open end wrench worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine PROTO tools to industrial buyers internationally.
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 size. For the J3021, the 3/8 in end fits 3/8 in fasteners and the 7/16 in end fits 7/16 in fasteners. Ensure the wrench length provides adequate torque for the application; PROTO alloy steel construction offers strength for repeated use.
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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.
