What are the actual sizes of the flare nut wrenches one gets?

1/4" x 5/16" FLARE NUT WRENCH 3/8"X7/16"FLARE NUT WRENCH 1/2"X9/16"FLARE NUT WRENCH 5/8"X11/16"FLARE NUT WRENCH 8MM X 9MM FLARE NUT WRENCH 10MM X 12MM FLARE NUT WRENCH 13MM X 14MM FLARE NUT WRENCH 15MM X 17MM FLARE NUT WRENCH 19MM X 21MM FLARE NUT WRENCH

Do these wrenches have a grove cut out inside the square drive hole so as to be heald by an extention bar?

Not quite sure what your question is in regard to, but no they just have a square hole like on any socket. Anything you can stick into a socket (a ratchet, an extension etc) will fit into them. I used a 3/8" extension on the size I needed and the wrench did not fall off if that's your question.

Using them for brake lines, how well does a 3/8 ratchet clear the opening? Do you have to use a 3/8 breaker bar with them?

Did not use on brake lines. I used them on power steering lines

Are they offset ? If you flip them over can you get a different bite on the fastener

They are offset but clearance around nut or bolt may inhibit how far you are able to rotate with each bite. I changed out a power steering high pressure hose with mine. It was tedious but did the job.

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Sunex Tools 9710M 3/8-Inch Drive Metric Crowfoot Flare Nut Wrench Set, Size-10 - Size 19, 10-Piece

Sunex Tools 9710M 3/8-Inch Drive Metric Crowfoot Flare Nut Wrench Set, Size-10 - Size 19, 10-Piece

Product ID: 53468962

Details

Colour
Original
Brand
Sunex
Material
Metal
Item length
0.75 Inches
Item weight
1.25 Pounds

📏Metric sizes 10-19mm for precise fit

🔩Drop forged alloy steel for ultimate strength

🛠️3/8-inch drive for versatile tool compatibility

¥19062

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Description

🛠️ Unlock precision power with every turn — don’t get left wrenching in the past!

TRUSTED BY PROS - Highly rated with 4.7 stars from over 2,600 users, proven reliable for power steering and brake line repairs.
COMPLETE METRIC RANGE - Includes 10 essential sizes from 10mm to 19mm, ensuring you have the perfect fit for every flare nut job.
EFFORTLESS ORGANIZATION - Mounted on a sleek, convenient storage rail to keep your workspace tidy and tools instantly accessible.
VERSATILE 3 8 INCH DRIVE - Compatible with most ratchets and torque wrenches, maximizing your toolkit’s flexibility and efficiency.
PRECISION ENGINEERED STRENGTH - Crafted from fully polished drop forged alloy steel for unmatched durability and corrosion resistance.

The Sunex Tools 9710M 3/8-Inch Drive Metric Crowfoot Flare Nut Wrench Set offers a robust, polished drop forged alloy steel construction with a full metric range from 10mm to 19mm. Designed for professional-grade performance, it features a 3/8-inch drive compatible with standard ratchets and comes neatly organized on a storage rail. Perfect for power steering and brake line maintenance, this set combines durability, precision, and convenience, earning top user ratings and making it an essential upgrade for any serious mechanic’s toolkit.

Specifications

ASIN	B0002SRJF4
Best Sellers Rank	489,076 in DIY & Tools ( See Top 100 in DIY & Tools ) 530 in Open-end Wrenches
Brand	Sunex
Colour	Original Version
Country of Origin	China
Customer Reviews	4.7 out of 5 stars 2,610 Reviews
Finish	Polished
Global Trade Identification Number	00613364397107
Head Style	Fixed Square, Flare Nut
Item Length	0.75 Inches
Item Package Quantity	1
Item Weight	567 g
Item length	0.75 Inches
Item package quantity	1
Item weight	567 g
Manufacturer	Sunex International
Material	Metal
Model Number	9710M
Operation Mode	Mechanical
Part Number	SUN9710M
UPC	031112655802 522536739853 782386165077 043934996544 723434637535 613364397107 014444898864
Unit Count	1.0 count

Reviews

E**T

Simply great for any power steering or brake lines.

This will never be the tools i use the most in my tool chest. However, when you do need to remove lines from power steering pumps, steering rack or any brake jobs, they will be invaluable. They are really solid and really nicely machined. The finish of the tool is perfect with no imperfections. I did used them lately on a Ford Focus power steering pressure line removal from the pump and also a Hyundai Tucson power steering pressure hose. I did use a «cheater pipe » to get extra leverage. The crowfoot stayed intact, it didn’t protest! There is cheaper crowfoot sets on Amazon but this one is really a keeper at approx. 50$/set. When you dig in for this kind of tool, you want something that will perform. Don’t you?

11.05.2022

C**.

Usefull and stronge tool

Son excelente llaves, para la mecanica me funcionan muy bien y las utilizo sin ningun problema

23.06.2023

H**A

Good

Almost lock the nut

24.08.2023

O**R

Boas pelo preço cobrado.

Encaixe perfeito sem folgas, achei largas demais

25.07.2025

D**L

Good quality

18.04.2026

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¥19062

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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