PROTO Open End Wrench: Alloy Steel, Satin, 7/8 in_13/16 in Head Size, 10 in Overall Lg
The PROTO J3440 is an SAE double-end open end wrench made from alloy steel with a satin finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 in. This standard wrench is designed for…
SKU 3G-OTH-284856
Also listed as: J 3440 · J-3440
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 J3440 is an SAE double-end open end wrench made from alloy steel with a satin finish. It features head sizes of 7/8 in and 13/16 in, with an overall length of 10 in. This standard wrench is designed for industrial applications requiring a durable, non-ratcheting tool.
Frequently Asked Questions
What is the PROTO J3440 open end wrench used for?
The PROTO J3440 is a double-end open end wrench used for tightening or loosening hex fasteners in industrial maintenance, automotive repair, and mechanical assembly. Its alloy steel construction and satin finish provide durability and corrosion resistance for repeated use in demanding environments.
What are the specifications of the PROTO J3440 wrench?
The PROTO J3440 is an SAE double-end open end wrench made from alloy steel with a satin finish. It has head sizes of 7/8 in and 13/16 in, with an overall length of 10 in. The manufacturer part number is J3440, and it is a standard (non-ratcheting) tool.
Where to buy the PROTO J3440 wrench worldwide?
You can source the PROTO J3440 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 select the right PROTO open end wrench size?
To select the correct PROTO open end wrench, match the head size to the fastener's hex width. The J3440 fits 7/8 in and 13/16 in fasteners. For industrial use, choose alloy steel for strength and a satin finish for grip. Ensure the overall length provides adequate leverage without over-torquing.
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.
