PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in Head Size, 6 1/2 in Overall Lg
The PROTO Flare Nut Wrench (MPN J3753) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features a 1/2 in head size and a 6 1/2 in overall length.
SKU 3G-OTH-311089
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Product Description
The PROTO Flare Nut Wrench (MPN J3753) is an SAE, double-end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features a 1/2 in head size and a 6 1/2 in overall length.
Frequently Asked Questions
What is the PROTO Flare Nut Wrench J3753 used for?
The PROTO J3753 flare nut wrench is designed for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines. Its 6-point, double-end configuration provides a secure grip on soft brass or aluminum fittings without rounding, making it essential for automotive, HVAC, and industrial maintenance.
What are the specifications of the PROTO J3753 flare nut wrench?
The PROTO J3753 is an SAE double-end, standard-head, 6-point flare nut wrench. It is made of alloy steel with a satin finish, has a 1/2 in head size, and an overall length of 6 1/2 in. The manufacturer part number is J3753.
Where to buy the PROTO J3753 flare nut wrench worldwide?
3G Electric supplies the PROTO J3753 flare nut wrench to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this PROTO tool.
How to select the right flare nut wrench size?
Select a flare nut wrench that matches the hex size of the fitting you are working on. For the PROTO J3753, the head size is 1/2 in, suitable for SAE flare nuts of that dimension. Always verify the fitting size before use to avoid damage. PROTO tools are known for durability in demanding applications.
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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.














