Professional Brake Line Flaring Tool Kit - 45 & 37 Degree Flares

In this review of the Professional Brake Line Flaring Tool Kit, the bottom line is simple: it is a practical, workshop-ready set for anyone who needs reliable single, double and bubble flares on steel, stainless and softer tubing like copper. The kit stands out because it supports both 37-degree and 45-degree flares across four common tube sizes, making it a versatile choice for brake line repair and plumbing jobs; its robust steel body and thoughtful split-die design deliver consistent results when set up correctly.

Key Features

• Dual-angle turntables: Having both 37-degree and 45-degree turntables lets the user create the correct flare profile for different fittings without buying separate tools.
• Four split die sizes: The included dies for 3/16' (4.75mm), 1/4' (6.35mm), 5/16' (8mm) and 3/8' (9.5mm) cover the most common brake and tubing sizes encountered in automotive and plumbing work.
• Vise-mounted body: The tool body clamps securely in a bench vise so the operator can flare tubing firmly and safely, improving consistency.
• Split dies with limiting hole: The limiting hole reduces die slippage during use, which helps maintain a stable clamp and cleaner flare edges.
• Long lever handle: The left-turn designed handle reduces effort for right-handed users, making the flaring process smoother and less tiring.
• Plastic storage case and manual: A compact suitcase and a graphic instruction sheet keep the parts organized and make setup straightforward for beginners.

Who It's For

This tool kit is best for DIY mechanics, hobbyists and small-shop technicians who work on brake lines or metal tubing and need a versatile, workshop-mounted flaring solution. It is also useful for plumbing tasks on copper and other softer metals where single, double and bubble flares are required.

It is not intended for under-car use or as a portable field tool; users who need to flare lines on a vehicle while it is still on the lift should look for a dedicated portable flaring tool designed for that environment. Also, those who only need one flare angle or a single tube size may find this kit more than they require.

Pros & Cons

Pros

• Produces consistent, repeatable flare quality across multiple tube sizes when mounted properly.
• Solid steel construction of the tool body offers durability for regular shop use.
• Includes both 37 and 45-degree turntables and four die sizes, reducing the need for extra parts.
• Storage case and clear graphic manual make organization and initial setup easier for newcomers.

Cons

• Requires a bench vise for mounting and is therefore not suitable for in-vehicle flaring work.
• The graphic manual may be minimal for users who prefer detailed step-by-step instructions.

Specifications

Tool type	Bench vise-mounted flaring tool body
Flare angles	37 degree and 45 degree
Supported tube sizes	3/16' (4.75mm), 1/4' (6.35mm), 5/16' (8mm), 3/8' (9.5mm)
Compatible materials	Stainless steel, steel, softer metals such as copper
Included accessories	45 and 37 degree turntables, split dies, long lever handle, instruction manual, plastic suitcase
Body material	High-quality steel

Our Verdict

The Professional Brake Line Flaring Tool Kit is a solid value for home mechanics and small shops that need a reliable bench-mounted flaring solution. With both 37-degree and 45-degree options, four die sizes and a sturdy steel body, it handles the common tubing sizes and flare types used in brake and plumbing work; just plan to use it on a workbench rather than under a car.

Frequently Asked Questions

Can this kit flare stainless steel?
Yes, the kit is suitable for stainless steel as well as steel and softer metals like copper, though stainless may require more careful setup and force.

Does it include a storage case?
Yes, the set comes with a plastic suitcase to keep the tool body, dies, turntables and handle organized.

Is this tool usable without a vise?
No, the bottom of the tool should be clamped in a reliable bench vise for safe and effective operation; it is not intended for in-vehicle use.