Mastercool hydraulic brake and fuel line flaring kit 72475-PRC — hydraulic ram, precision dies, molded carry case

The Mastercool 72475-PRC is a professional hydraulic flaring kit that makes accurate, leak-resistant flares in brake, fuel, and transmission tubing with minimal effort.

Built around Mastercool’s original hydraulic flaring design, this kit combines a hydraulic ram, precision-formed dies, and a compact toolkit to speed up shop work and improve repeatability. It supports common automotive tubing sizes and multiple flare profiles so you can prepare lines that meet OEM-style fittings without trial-and-error shaping.

What tubing sizes and flare types can this kit handle?

The 72475-PRC covers a broad range of automotive tubing dimensions and produces several industry-standard flares. It accepts tubing from 3/16" to 1/2" (and metric 4.75 mm to 10 mm) and fabricates 45° single and double flares, GM-style fuel flares, push-connect designs, and ISO bubble flares.

• Tubing range: 3/16"–1/2" (4.75–10 mm)
• Flare types: 45° single/double, GM fuel, push-connect, ISO bubble
• Precision dies shape consistent flare geometry for leak-free seals

How does the hydraulic action improve flaring versus hand tools?

The hydraulic ram removes much of the manual force needed to form clean flares, delivering uniform pressure and reducing operator fatigue. That steady, controllable push produces identical results across multiple fittings and lowers the chance of metal cracking.

• Hydraulic ram for smooth, high-pressure forming
• Die stabilizer and magnetic holder keep parts aligned and secure
• Faster cycle times compared with manual yokes or screw presses

What’s included and how does the kit stay organized for travel?

The kit ships with a set of hardened steel dies, adapters, a magnetic holder, the hydraulic unit, and a mini tube cutter to prepare clean edges before flaring. Everything nests in a molded carry case so dies and accessories remain protected and immediately accessible at the bench or on a service call.

• High-strength steel dies for consistent, long-lasting flares
• Mastercool 70027 mini tube cutter for 1/8"–5/8" O.D. tubing
• Custom-molded case for secure transport and organized storage

Can this tool be used for professional brake or fuel line repairs?

Yes — the kit was designed with repair shops and professional mechanics in mind. Its durable steel construction and precision components produce repeatable, leak-resistant flares suitable for safety- and performance-critical systems when work follows proper procedures and inspection.

• Reinforced tool body for heavy shop use
• Precision dies reduce metal fatigue and improve joint integrity
• Magnetic adapter holder speeds setups and minimizes dropped parts

Who is this for: The Mastercool 72475-PRC is aimed at professional mechanics, performance shops, restoration specialists, and serious DIYers who need a portable, heavy-duty flaring solution. If you regularly form brake, fuel, or transmission tubing and want consistent, OEM-style flares with less physical effort, this kit provides the dies, cutter, hydraulic power, and storage to run through jobs reliably.