Mastercool 72485-PRC Hydraulic Flaring Tool Kit — 45° Single & Double Flares, Hydraulic Ram & Mini Cutter

The Mastercool 72485-PRC is a professional hydraulic flaring tool kit that forms 45° double and single flares plus multiple specialty flares for fuel, brake, transmission cooling and hydraulic lines.

This all-in-one kit combines a hydraulic ram, precision dies, GM transmission cooling adapters, and a mini tube cutter in a custom-molded case to tackle automotive and industrial tubing jobs. Designed to reduce operator effort and produce repeatable, leak-resistant connections, the unit handles common tube sizes from 3/16" to 1/2" and supports seven different flare types for versatile repairs and fabrication.

How does this tool simplify making flares on fuel and brake lines?

The hydraulic ram supplies controlled pressure so you get clean, consistent flares without excessive manual force. Precision-formed dies align and support tubing during forming, lowering the risk of cracks or uneven lips.

• Hydraulic ram replaces hand-screwing, speeding setup and flaring.
• High-strength steel dies maintain concentricity and reduce metal fatigue.
• Magnetic adapter holder keeps dies organized and within reach.
• Mini tube cutter delivers burr-free ends for better sealing surfaces.

Which flare types and tube sizes are supported by the kit?

The kit is engineered to produce seven different flare geometries so you can service diverse vehicle systems and hydraulic circuits. It accommodates common automotive tubing diameters from 3/16" up through 1/2" O.D., covering most fuel, brake, and cooling applications.

• 45° single and 45° double flares for traditional brake and fuel fittings.
• Push-connect and ISO bubble flares for modern fittings and adapters.
• GM-specific fuel and transmission cooling line dies and adapters included.
• Works with 3/16", 1/4", 5/16", 3/8" and 1/2" tube sizes.

What features improve durability and repeatability on the job?

Robust construction and precision tooling deliver reliable results when used regularly in shop environments. The die set stabilizing arm and magnetic holder reduce setup time and help avoid dropped parts that can slow repair work.

• Reinforced, high-strength steel body built for frequent professional use.
• Precision-formed dies reduce metal stress and produce uniform flares.
• Magnetic adapter holder prevents loss and speeds die swaps.
• Custom-molded storage case protects components during transport.

How does the included mini tube cutter benefit flare quality?

Clean tube ends are critical for leak-free joints; the supplied mini cutter produces smooth, square cuts to improve flange seating. This reduces filing or rework before flaring, saving time and preventing improper seals.

• Cuts 1/8" to 5/8" O.D. tubing for broad compatibility.
• Produces burr-free edges for better flare contact surfaces.
• Portable size adds convenience for tight-access jobs.

Who is this for? The Mastercool 72485-PRC is aimed at professional mechanics, fleet maintenance technicians, and serious DIYers who need a dependable, versatile flaring solution for automotive and hydraulic systems. If you regularly work on brake lines, fuel systems, GM transmission cooling circuits, or hydraulic tubing and want faster setup, consistent results, and fewer reworks, this kit supplies the dies, hydraulic power, and accessories to get the job done reliably.