Brake Repair Brake Flaring Tools

A brake flaring tool creates flares on the ends of brake or hydraulic tubing so fittings seal properly; it’s required when installing or repairing brake lines, replacing sections of tubing, or adapting tubing to different fittings to prevent leaks and ensure safe braking performance

Common flare types are single (45°) flares and double (bubble or ISO/metric) flares; most modern automotive brake systems use 45° single flares or SAE-style double flares depending on vehicle, so check your vehicle service information or existing fittings before choosing a tool

Choose handheld or compact tools for occasional, light-duty repairs and portability; select bench-style or heavy-duty kits if you plan frequent work, thicker tubing, or need higher precision and durability—look at clamping stability, die compatibility, and build materials when comparing

Ensure the tool supports the tubing materials you use (typically mild steel, copper, or soft aluminum) and the common brake tubing sizes (commonly 3/16", 1/4", 5/16", 3/8"); check the tool’s specified size range and whether additional adapters or dies are included or available

Cut tubing square with a proper tubing cutter, deburr the inside and outside, clamp securely, use the correct die and lubrication if recommended, and tighten to specified torque for fittings; inspect each flare for concentricity and smooth edges before installation

Clean metal shavings after use, lightly oil moving parts to prevent rust, store dies and small parts in a protective case, and periodically check for worn or damaged dies that can produce poor flares

Prices vary from budget options under $50 to higher-end kits; factors affecting cost include number of included dies, build quality and materials, supported tube sizes, and whether the kit includes adapters for multiple flare types