Best 4Lifetimelines in 2026

Nickel-copper alloy is very flexible making for super easy bending & flaring for installation - You can hand bend our brake lines with no bending tools needed

Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing. Copper Nickel lines are ideal for vehicles experiencing harsh weather and environmental conditions

Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market

True copper nickel alloy non magnetic tubing - super easy bending and flaring, no tools necessary

Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing

Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market

Works with 3/16″ (4mm) through 1/2” (14mm) O.D. steel, copper, copper-alloy, & aluminum tubing

Perfect for brake, fuel, transmission, and coolant lines

Three cutting edges ensure clean, even deburring every time.

FITTINGS INCLUDED: The 4LIFETIMELINES brake line kit was designed for professional use and comes with 16 fittings: Steel Tube Nut 3/16 (3/8-24 I) x 10, Fitting 3/16 (7/16-24) x 2, Steel Tube Nut 3/16 (9/16-18 I) x 2, Fitting 3/16 (1/2-20) x 2.

PREMIUM QUALITY & DURABLE: This brake line tubing coil is made with professional grade double-wall galvanized steel tube and zinc coated corrosion-proofing technology, guaranteed to withstand the test of time.

ENHANCED FLEXIBILITY: Unlike similar products on the market, this 3/16” brake line meets all SAE and ISO specifications, being highly flexible and allowing for easy bending and shaping without kinking.

Seamlessly drawn stainless steel with molybdenum for extra resistance against rust and corrosion

Use this coil to create 3/16 Domestic, European, Japanese, British, and adapter brake lines

Manufactured using technology to prevent kinking and to retain shape while bending

5 TUBING SIZES: The 4LIFETIMELINES heavy duty turret brake line flare tool allows you to create 45 degree highly precise double, single and bubble flares in 5 sizes of tubing, 3/16″, 1/4″, 5/16″, 3/8″ and 4.75mm.

COMPATIBLE MATERIALS: This brake flaring tool can work with stainless steel, steel and nickel copper tubing, being a smart and practical solution for brake lines, fuel lines and transmission cooler lines.

EASY TO USE: Unlike similar products on the market, this professional flaring tool features a quick-release T handle ensuring fast holder die changeovers for a smooth and user-friendly experience.

Our 3/16 (M10x1.0 Inverted) brake line unions are made with unmatched superior quality

4LifetimeLines unions are made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Suitable for brake hydraulic line union applications

Includes 10 brass brake line union 3/16, 3/8-24 Inverted, per bag

Our brake line unions are made with unmatched superior quality

Made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Easily check thread sizes for the most common thread sizes found in automotive braking systems

Check thread sizes for: 1/8" NPTF, 1/4" NPTF, 3/8" x 24, 7/16" x 20, 7/16" x 24, 1/2" x 20, 9/16" x 18, 9/16" x 20, 5/8" x 16

Each size has a male and female end checker

High quality brass for leak-proof reliability

Our brake line unions are made with unmatched superior quality

Made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter

Nickel-copper alloy for super easy bending & flaring - You can hand bend lines our lines for easy and flexibility

Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing

Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market

✅ 1/4 Nickel-copper alloy for super easy bending & flaring - You can hand bend lines our lines for easy and flexibility

✅ Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing

✅ Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market

Our lines offer superb quality while allowing bend-ability without kinking

0.028" wall thickness, 5/16" OD

Includes a lifetime warranty through 4Lifetimelines

Nickel-copper alloy for super easy bending & flaring - You can hand bend lines our lines for easy and flexibility

Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing

Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market

Complete 1/4 brake line replacement kit with stainless steel fittings and coil

316L marine-grade tubing and fittings for highest level protection against rust and corrosion

Perfect for restoring classic cars or for giving your vehicles lines an extra layer of protection

Includes 10 Steel Tube Nut, 3/16, M10x1.0 Inverted, per bag

Our brake line tube nuts are made with unmatched superior quality

Plated for corrosion resistance

Copper Steel for super easy bending & flaring - You can hand bend lines our lines for easy and flexibility

Rust and Corrosion Proofing Technology - Zinc undercoating and copper plating technology provide ultimate protection against rust and corrosion

Meets all SAE, ISO, and ASTM Specifications - Trustworthy and reliable lines that meet and surpass all specifications

Complete 3/16 and 1/4 brake line replacement kit with stainless steel fittings and coil

Marine-grade tubing and fittings for highest level protection against rust and corrosion

Perfect for restoring classic cars or for giving your vehicles lines an extra layer of protection

Contains two (2) complete brake line kits

Copper Nickel brake line is corrosion resistant on the inside and outside of the brake line

Flexible brake lines ensure easy bending yet durable enough to last

Creates single, double inverted (SAE) flares and bubble (ISO) flares up to 0.040" wall thickness. This is a professional tool, please read instructions before using

Designed to perform flares on thin wall steel, aluminum, copper, and nickel-copper tubing

Includes flaring dies for all sizes: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 4.75mm, 6mm, 8mm, 10mm

Creates single, double inverted (SAE) flares & bubble (ISO) flares up to 0.040" wall thickness

Designed to perform flares on thin wall steel, aluminum, copper, and nickel-copper tubing

Includes flaring dies for sizes: 3/16", 1/4", 5/16", 3/8", 1/2", 4.75mm, 6mm, 8mm, 10mm

Creates SAE 45 degree inverted double flares, the most commonly used flare in brake line applications

Designed to perform flares on thin wall 1/4 steel, aluminum, copper, and nickel-copper tubing

Compact handheld design makes this tool perfect for using in tight spaces under the vehicle

DIY: Create Perfect 45° SAE Inverted, ISO Bubble, Push-Connect, GM Fuel Line, and single flares quickly

TEST YOUR METAL: Use to flare steel, stainless steel, and copper-nickel tubing

FLARES IN A PINCH: Can be operated one-handed in tight quarters

Latex-free nitrile gloves for a safe and irritation-free work environment - Our disposable gloves are perfect for anyone with an allergy to latex, and are also powder free to reduce the risk of irritation. Chemical-resistant and puncture-resistant, these gloves will protect your hands from sharp tools, tricky applications, and hazardous chemicals.

Textured fingertips for a top quality grip - When you're working with slippery oils and greasy substances, you need a good grip on your tools. With our textured fingertips, you'll have the grip you need to get the job done.

Powder free & latex free gloves reduce the risk of irritation or allergic reactions - Many people experience skin irritation or allergic reactions when exposed to latex proteins. Our powder free nitrile gloves remove the risk of this happening, so you can work with peace of mind.

Prevents squeaking or squealing noises, cuts down on dusting of pads or drums, and helps keep dirt and moisture away from the brakes

Reduces wear and tear on parts like pad brackets, rings, pins, and bushings by keeping them from rubbing against one another

Prevents oxidation or corrosion of components over time

Non-melting formula fortified with ceramic solids for maximum protection

Ultra high temperature range of -50 F to 3000 F (-46 C to 1649 C)

Long lasting protection that outperforms existing Caliper Grease and Disc Brake Quiet products

Includes 10 fittings per bag

Our brake line tube nuts are made with unmatched superior quality

Works with steel, copper nickel, copper coated steel, PVF-coated, and stainless steel lines

Includes 10 Steel Tube Nut, 3/16, 3/8-24 Inverted, per bag

Our brake line tube nuts are made with unmatched superior quality

Plated for corrosion resistance

Keep Your Electrical Components Waterproof and Protected: Dielectric grease is the perfect solution for keeping your electrical components safe from moisture and corrosion. Our brush top applicator makes it easy to apply the grease exactly where it's needed.

Long-Lasting Protection Against Oxidation, Corrosion, and Contamination: Our dielectric grease forms a thick, waterproof layer that prevents oxidation, inhibits corrosion, and keeps out dirt, salt, and other contaminants. It's non-melting so it will stay in place even in extreme conditions.

Multipurpose Silicone Lubricant: Our silicone lube is perfect for a variety of automotive, electrical, and marine applications. It's compatible with metal, rubber, and plastic and is great for fixing sluggish car windows.

Silicone lubricant does not damage or corrode most materials over time, making it an excellent sealant

Provides a barrier against moisture which prevents rust and corrosion on metal surfaces

Unlike traditional oils, this long-lasting lubricant does not deteriorate over time when exposed to high temperatures or moisture