Thorstone 45° Flaring Tool Kit for Brake and Tubing Lines — Single 45° Flare, Cutter & Reamer

If you work on automotive brake lines, HVAC fittings, or copper and brass tubing, this Thorstone kit gives you the parts needed to cut, ream and form consistent 45° single flares. The set groups a flaring cone, a forged flaring bar (yoke), a tube cutter, a round reamer and seven adapter sizes into a blow-molded case that’s easy to carry and store.

How does this kit create reliable 45° single flares?

The kit’s hardened flaring cone and heat-treated flaring bar clamp the tubing and shape a clean 45° flare without splitting or flattening soft metals. Use the correct adapter size for the tube diameter, then draw the cone down to form a uniform flange for sealing fittings.

• Seven adapters: 3/16", 1/4", 5/16", 3/8", 1/2", 5/8" and 3/4"
• Forged flaring bar for even pressure distribution
• Hardened cone to shape a consistent 45° flare

Which materials and tube sizes are compatible with this tool?

Designed for softer tubing, the Thorstone kit works with copper, aluminum, brass and soft steel brake lines commonly used in automotive, HVAC and refrigeration tasks. It is not suited for hardened steel or cast iron pipe.

• Tube cutter fits 1/8" to 1-1/8" outer diameters
• Adapters cover common brake and A/C sizes
• Use reamer to deburr and prepare tube ends before flaring

What tools are included and how do they speed up the job?

This compact kit combines cutting, reaming and flaring steps so you don’t need separate specialty tools. The cutter gives a straight cut, the reamer removes burrs, and the flaring cone with the yoke produces the finished 45° flare—packaged together for portability.

• One flaring cone plus flaring bar (yoke)
• Tube cutter for clean, square cuts
• Round reamer to remove burrs and ensure seating
• Blow-molded case for tool protection and storage

How durable is the Thorstone flaring tool set?

Key components are made from heat-treated steel and forged parts designed to withstand repeated use on soft tubing. Regular maintenance—cleaning and light lubrication—keeps the mechanisms crisp and reliable over time.

• Heat-treated steel flaring bar for strength
• Forged yoke to resist deformation under pressure
• Compact protective case to prevent damage in transit

Who this is for: The Thorstone 45° Flaring Tool Kit is aimed at DIY mechanics, professional technicians, HVAC installers and hobbyists who need a portable, complete set for cutting, prepping and flaring soft-metal tubing. It’s ideal when making or repairing brake lines, A/C fittings and other soft metal tube assemblies where a 45° single flare is required. Note: avoid using on hardened or cast iron materials.