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PROTO Flare Nut Wrench: Alloy Steel, Satin, 5/8 in Head Size - 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, 5/8 in Head Size

The PROTO Flare Nut Wrench is an SAE, double end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features a 5/8 in head size and a 7 3/4 in overall length (MPN J3755).

SKU 3G-OTH-311106

Also listed as: J 3755 · J-3755

Brand
PROTO
Item
Flare Nut Wrench: Alloy Steel, Satin, 5/8 in Head Size
Category
SAE, Double End, Standard-Head, 6-Point Flare Nut Wrenches
Available to Order
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Technical specs
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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.

Technical Specifications

PROTO
Manufacturer Part Number
J3755
Type
Satin
Overall Lg
7 3/4 in
Head Size
5/8 in

Technical Documents

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

Product Description

The PROTO Flare Nut Wrench is an SAE, double end, standard-head, 6-point flare nut wrench made of alloy steel with a satin finish. It features a 5/8 in head size and a 7 3/4 in overall length (MPN J3755).

Frequently Asked Questions

What is the PROTO Flare Nut Wrench used for?

The PROTO Flare Nut Wrench is designed for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings. Its 6-point, double-end configuration grips the nut securely without rounding, making it essential for automotive and industrial maintenance where line integrity is critical.

What are the specifications of the PROTO Flare Nut Wrench J3755?

The PROTO J3755 is an SAE, double-end, 6-point flare nut wrench made of alloy steel with a satin finish. It has a 5/8 in head size and a 7 3/4 in overall length. The alloy steel construction provides durability for repeated use in demanding environments.

Where to buy the PROTO Flare Nut Wrench worldwide?

You can source the PROTO Flare Nut Wrench J3755 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this item.

How to maintain a PROTO Flare Nut Wrench?

To maintain your PROTO Flare Nut Wrench, clean it after each use with a dry cloth to remove grease and debris. Store in a dry environment to prevent corrosion. Avoid using cheater bars or impact tools, as these can damage the satin finish or the 6-point head.

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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