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PROTO J3700M Metric Double End Flare Nut Wrench Set, 5-Piece, 7-17mm - Metric, Double End, Standard-Head, 6-Point, Flare Nut Wrench Sets
PROTOMetric, Double End, Standard-Head, 6-Point, Flare Nut Wrench Sets

PROTO J3700M Metric Double End Flare Nut Wrench Set, 5-Piece, 7-17mm

The PROTO Flare Nut Wrench Set (MPN J3700M) is a metric, double-end, standard-head, 6-point flare nut wrench set made of alloy steel with a satin finish. It includes 5 tools covering a head size range of 7mm to 17mm.

SKU 3G-OTH-279693

Brand
PROTO
Item
J3700M Metric Double End Flare Nut Wrench Set, 5-Piece, 7-17mm
Category
Metric, Double End, Standard-Head, 6-Point, Flare Nut Wrench Sets
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J3700M
Type
Satin
Tools
5
Range Of Head Sizes
7mm to 17 mm

Technical Documents

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

Product Description

The PROTO Flare Nut Wrench Set (MPN J3700M) is a metric, double-end, standard-head, 6-point flare nut wrench set made of alloy steel with a satin finish. It includes 5 tools covering a head size range of 7mm to 17mm.

Frequently Asked Questions

What is the PROTO Flare Nut Wrench Set used for?

The PROTO Flare Nut Wrench Set (J3700M) is used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings. Its 6-point, double-end design grips the nut securely without rounding, making it essential for automotive and industrial maintenance.

What are the specifications of the PROTO Flare Nut Wrench Set J3700M?

This PROTO set includes 5 tools made of alloy steel with a satin finish. It covers a head size range of 7mm to 17mm. The wrenches are metric, double-end, standard-head, 6-point flare nut wrenches, designed for precise fit on flare nuts.

Where to buy the PROTO Flare Nut Wrench Set worldwide?

3G Electric supplies the PROTO Flare Nut Wrench Set (J3700M) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this alloy steel, satin-finish wrench set to your facility, wherever it is located.

How to maintain the PROTO Flare Nut Wrench Set?

To maintain the PROTO Flare Nut Wrench Set, clean the alloy steel tools after each use with a dry cloth to prevent corrosion. Store them in a dry environment. Avoid using the wrenches on damaged or rusted nuts, as this can wear the 6-point satin finish.

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 metric, double end, standard-head, 6-point, flare nut wrench sets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This SAE flare nut wrench set includes 7 double-end, standard-head, 6-point wrenches with head sizes ranging from 3/8 in to 3/4 in. Made of alloy steel with a satin finish, it is designed for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
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This SAE flare nut wrench set includes 7 double-end, standard-head, 6-point wrenches with head sizes ranging from 3/8 in to 3/4 in. Made of alloy steel with a satin finish, it is designed for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
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Alloy steel construction with satin finish. Double-end design with 12-point flare nut openings in 7 mm and 8 mm sizes. Overall length of 5 3/4 inches. Used for tightening or loosening flare nuts on hydraulic, fuel, and refrigeration lines in maintenance and repair tasks
Double-end, standard-head, 6-point flare nut wrench with 9 mm and 11 mm head sizes. Made of alloy steel with a satin finish. Overall length of 6 1/4 inches. Used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
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Double-end, standard-head, 6-point flare nut wrench with 9 mm and 11 mm head sizes. Made of alloy steel with a satin finish. Overall length of 6 1/4 inches. Used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
Alloy steel flare nut wrench with satin finish. Double-end design with 6-point openings for 7 mm and 8 mm flare nuts. Overall length 5 3/4 inches. Used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
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Alloy steel flare nut wrench with satin finish. Double-end design with 6-point openings for 7 mm and 8 mm flare nuts. Overall length 5 3/4 inches. Used for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
This PROTO flare nut wrench is made from alloy steel with a satin finish. It features 6-point, double-end heads sized 16 mm and 18 mm, with an overall length of 8-3/4 inches. Designed for turning flare nuts on brake, fuel, and hydraulic lines in automotive and industrial applications
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This PROTO flare nut wrench is made from alloy steel with a satin finish. It features 6-point, double-end heads sized 16 mm and 18 mm, with an overall length of 8-3/4 inches. Designed for turning flare nuts on brake, fuel, and hydraulic lines in automotive and industrial applications
This set includes three double-end, standard-head, 6-point flare nut wrenches made of alloy steel with a satin finish. The wrenches cover SAE head sizes from 3/8 in to 11/16 in. Designed for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings
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This set includes three double-end, standard-head, 6-point flare nut wrenches made of alloy steel with a satin finish. The wrenches cover SAE head sizes from 3/8 in to 11/16 in. Designed for tightening or loosening flare nuts on brake lines, fuel lines, and hydraulic fittings

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