PROTO Flare Nut Wrench: Alloy Steel, Satin, 11/16 in Head Size, 8 3/4 in Overall Lg
The PROTO Flare Nut Wrench (MPN J3756) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features an 11/16 in head size and an overall length of 8 3/4 in.
SKU 3G-OTH-311096
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Product Description
The PROTO Flare Nut Wrench (MPN J3756) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features an 11/16 in head size and an overall length of 8 3/4 in.
Frequently Asked Questions
What is a PROTO Flare Nut Wrench used for?
A PROTO Flare Nut Wrench is used to tighten or loosen flare nuts on fuel, brake, and hydraulic lines without damaging the fitting. Its 6-point, double-end design provides a secure grip on SAE fasteners, making it essential for automotive and industrial maintenance.
What are the specifications of the PROTO J3756 Flare Nut Wrench?
The PROTO J3756 Flare Nut Wrench is an SAE, double-end, standard-head, 6-point wrench made of alloy steel with a satin finish. It has an 11/16 in head size and an overall length of 8 3/4 in. The manufacturer part number is J3756.
Where to buy a PROTO Flare Nut Wrench worldwide?
You can source the PROTO Flare Nut Wrench (J3756) through 3G Electric, which handles logistics, customs, and delivery to worldwide destinations. As a global industrial supplier, 3G Electric provides genuine PROTO tools and supports international procurement with full shipping coordination.
How to select the right flare nut wrench size?
To select the right flare nut wrench, match the head size to the nut on your fitting. For SAE fasteners, measure the nut across the flats. The PROTO J3756 has an 11/16 in head size, suitable for common brake and fuel line nuts. Always verify the wrench fits snugly to avoid rounding.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO sae, double end, standard-head, 6-point flare nut wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














