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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
Part Number
J3700M
Category
Metric, Double End, Standard-Head, 6-Point, Flare Nut Wrench Sets
Available to Order
Also known as:J3700MPROTO
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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
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Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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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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