Lucky Seven 3/16" Copper-Coated Brake Line Kit — 25 ft with 20 Brass Fittings & Flaring Tool, Corrosion-Resistant

Lucky Seven's 3/16" copper-coated brake line kit is a 25-foot brake and fuel line solution with 20 brass fittings and a single/double flaring tool for corrosion-resistant, field-ready installations.

This kit combines flexible copper-coated steel tubing with a full set of brass fittings and a manual flaring and cutting tool so you can repair or replace lines for braking, fuel, and hydraulic circuits. The materials resist rust and are compatible with common soft metals, making the set suitable for shop repairs, roadside fixes, and custom plumbing on classic or modern vehicles.

How durable is the tubing for road and weather exposure?

The tubing is made from steel with a copper exterior coating that slows corrosion and preserves flexibility. That finish helps protect against moisture and road salts while keeping the tube easy to route through vehicle channels.

• Copper-coated steel resists rust better than plain steel.
• 3/16" diameter balances strength and bendability for tight runs.
• Suitable for undercarriage and engine-bay installations.

What fittings and connectors are included for a complete installation?

The kit contains 20 brass fittings sized for 3/16" tubing, including four unions for joining run segments. Brass fittings reduce galling and handle brake fluid and fuel exposure without corroding quickly.

• 16 inverted tube nuts designed for 3/16" tubing threads.
• 4 threaded unions to splice or extend lines cleanly.
• Brass construction to limit corrosion and ensure reliable seals.

Can I make single and double flares with the included tool?

The supplied flaring tool kit supports both single and double flares on soft metals like copper, aluminum, brass, and soft steel. It also includes a tube cutter so you can prepare ends precisely before forming the flare.

• Single- and double-flare capability for different fittings and systems.
• Compatible with common soft metal brake and fuel lines.
• Integrated cutter gives clean, burr-free tube ends for leak-free joints.

Where can this brake line kit be used beyond automotive brakes?

While designed for hydraulic brake systems, this tubing set also works with fuel lines, transmission cooler lines, and other low-pressure hydraulic circuits in automotive, industrial, and home workshop contexts. The combination of tubing and brass fittings provides versatility for many repair and custom projects.

• Automotive braking and parking brake plumbing.
• Fuel delivery lines and low-pressure hydraulic runs.
• Transmission cooling lines, lawn equipment, and light industrial uses.

Who is this for: mechanics, restoration hobbyists, mobile technicians, and DIY vehicle owners who need a compact, corrosion-resistant tubing kit with fittings and tools to complete brake, fuel, or hydraulic line work. If you want a single package that includes tubing, a full complement of brass connectors, and the tooling to cut and flare ends on-site, this Lucky Seven kit covers those needs without requiring separate purchases.