Mastercool Hydraulic Brake and Fuel Line Flaring Kit 72475-PRC — 45°/double, GM & ISO flares, heavy-duty case

Engineered for shops and serious DIYers, this hydraulic flaring kit combines Mastercool's original patented ram design with precision-formed dies to deliver consistent 45° single and double flares, push-connect and GM fuel line flares, plus ISO bubble flares. The heavy-duty steel body, magnetic adapter holder, and compact molded case mean the kit is built for repeatability, durability, and convenient transport between jobs.

How does the hydraulic ram improve flaring compared to manual tools?

The hydraulic ram applies steady, controlled force so each flare forms evenly without excessive hand strain. That produces more uniform flares, reduces operator fatigue, and lowers the risk of cracking or uneven edges on the tubing.

• Smoother force application for consistent flare geometry
• Faster cycle times than manual yoke tools
• Less metal fatigue and fewer re-dos on delicate tubing

What flare types and tube sizes can this kit handle?

This Mastercool kit supports a wide range of automotive flare standards and tube diameters so it covers most brake, fuel, and transmission applications. Dies are precision-formed to accommodate both imperial and metric tubing sizes for dependable, leak-resistant joints.

• 45° single and double flares for brake line applications
• Push-connect and GM fuel line flares for modern fuel systems
• ISO bubble flares and sizes from 3/16" to 1/2" (4.75 mm to 10 mm)

Which accessories are included and how do they help the job?

The kit ships with everything needed to prepare and form tubing cleanly, plus storage to keep components organized. Included accessories reduce setup time and protect parts between uses so you can maintain professional workflows.

• High-strength steel dies for precise, repeatable flare profiles
• Mastercool 70027 mini tube cutter for clean, square cuts (1/8"–5/8" O.D.)
• Magnetic adapter holder and die stabilizing arm for secure, efficient operation
• Custom molded case keeps dies and tools organized and portable

How durable and serviceable is the tool for workshop use?

Constructed from reinforced, high-strength steel, the flaring tool resists wear and maintains alignment under heavy use. The magnetic holder and modular dies let you swap components quickly, extending tool life and simplifying maintenance.

• Reinforced steel body built for professional environments
• Precision dies reduce metal fatigue and extend tubing life
• Compact case protects components and simplifies storage

Who is this for: The Mastercool 72475-PRC is intended for professional mechanics, automotive technicians, and advanced DIYers who need reliable, repeatable flares across brake, fuel, and transmission systems. If you work on modern vehicles that use multiple flare standards or you value faster, less fatiguing setup for frequent jobs, this kit offers the durability and versatility required for shop-level results.