IHOTDER 25ft Brake Line Kit — 3/16" & 1/4" Copper-Plated Tubing with Flaring Tool & Inverted Fittings, Carry Case

This professional-grade kit supplies two 25-foot lengths of copper-plated carbon steel brake line (3/16" and 1/4"), a full selection of inverted tube nuts, a tube cutter, multi-size adapters, and a flare rod and cone—neatly organized in a blow-molded carrying case. The components are sized and arranged for on-vehicle repairs, custom runs or full brake-line replacement on cars, trucks and SUVs where reliable fittings and correct flare geometry matter.

How do I prepare and cut the brake line cleanly?

Accurate cutting is the first step to a leak-free connection. Use the included tube cutter to score and rotate around the tube, adjusting the handle until the blade seats, then tighten progressively to avoid deforming the tubing.

• Choose the cutter hole that matches your tubing OD (works from roughly 1/8" to 5/8" OD).
• Rotate the cutter around the tube, tightening a quarter turn at a time for a square cut.
• Deburr the inside and outside after cutting to ensure proper seating of the flare.

What’s the correct way to make a single flare and a double flare?

The kit supports both single and double flares so you can match factory-style connections or create strong inverted flares. Follow the sequence: measure and position the tube, use the flaring rod and cone for a single flare, and employ the adapter and cone for a double flare.

• Single flare: place tube in the flaring rod, center the cone, and turn evenly to form the flare.
• Double flare: use the proper adapter height, compress with the cone, then reform with the single-flare step.
• Keep the tubing straight and avoid pulling it too high from the rod to prevent cracks.

Which fittings and adapter sizes are included and how do they help?

This kit includes a broad assortment of inverted tube nuts and five adapter sizes so you can fit common brake and hydraulic line threads without searching for extras. The inventory covers both 3/16" and 1/4" tubing needs plus larger adapters for varied brake-system work.

• 3/16" inverted nuts: multiple thread sizes including 3/8-24 and 1/2-20 for older and custom fittings.
• 1/4" inverted nuts: twelve 7/16-24 nuts plus several 1/2-20 and 9/16-18 sizes for broad compatibility.
• Adapters: five sizes (3/16" to 1/2") let you form consistent flares across tubing diameters.

How durable and transportable is this kit for field work?

The tubing is carbon steel with copper plating for corrosion resistance and flexibility, while the tools are built to withstand repeated use. Everything fits in a hard blow-molded case for tidy storage and safe transport to the garage or job site.

• Copper-plated carbon steel lines balance strength with bendability for installation routing.
• Tools and fittings secure in foam-molded slots to reduce loss and protect edges.
• Lightweight, compact case dimensions make it suitable for mobile mechanics and DIYers.

Who this is for: The IHOTDER 25ft brake line and flaring kit is intended for experienced DIY mechanics, independent repair shops, fleet maintenance teams, and anyone who needs a comprehensive, portable solution for brake-line cutting, flaring and repair. It’s especially useful when replacing corroded runs, creating custom-length lines, or performing on-vehicle brake system maintenance that requires reliable inverted fittings and precise flare geometry. This kit gives the parts and tooling to complete most brake-line jobs without sourcing extra fittings.