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PROTO Flare Nut Wrench: Alloy Steel, Satin, 1/2 in Head Size, 6 1/2 in Overall Lg - SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
PROTOSAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches

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

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Satin, 1/2 in Head Size, 6 1/2 in Overall Lg
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
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Technical Specifications

PROTO
Manufacturer Part Number
J3753
Type
Satin
Overall Lg
6 1/2 in
Flare Nut
6-Point
Head Size
1/2 in
View Full Spec Sheet

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO 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.

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