GEAROLL Brake Line Flaring Tool Kit 3/16" & 1/4" — Double-SAE & Bubble Flares, Carbon-Steel Case

GEAROLL Brake Line Flaring Tool Kit is a compact, carbon-steel double-flare and bubble-flare set designed to form reliable 45° SAE single and double flares on 3/16" and 1/4" brake and hydraulic tubing.

This professional-grade kit gives mechanics and DIYers the ability to create precise, leak-resistant connections on copper, aluminum and nickel-copper tubing without the need for expensive factory tools. The toolset centers on a dual flaring body and OP1 punches that produce single flares, 45° double flares and bubble flares, plus it includes accessories to cut, position and protect the workpiece. Everything stores neatly in a blow-molded case so you can carry the kit to the shop or job site with the confidence that parts stay organized.

How precise are the flares this kit makes?

The kit uses hardened carbon-steel dies and double-ended OP1 punches to form consistent 45° SAE flares and bubble flares. The clamp securely locks the tubing and keeps alignment exact, reducing uneven or off-center flares.

• Creates 45° double flares and single flares for SAE fittings.
• Bubble-flare option for specific hydraulic fittings.
• Designed for 3/16" and 1/4" tube sizes to industry tolerances.
• Clamp prevents slippage for repeatable results.

What tube materials and sizes can I use with this tool?

GEAROLL's flaring tool is made for softer metal tubing commonly used in vehicle brake and hydraulic systems. It will not bend or flare stainless steel; do not use it on that material.

• Compatible: copper, aluminum, nickel-copper tubing.
• Tube sizes supported: 3/16" (4.75 mm) and 1/4" (6.35 mm).
• Not suitable for stainless steel tubing—material too hard.
• Includes mold lubricant to ease forming on delicate tubing.

What comes in the kit and how ready-to-use is it?

The kit arrives with the core flaring body, detachable handle and the accessories needed to cut, position and finish a flare job. An instruction booklet, gloves and a blow-molded case mean you can open the box and begin work quickly.

• Dual flaring tool body (3/16" and 1/4").
• Two double-ended OP1 punches and two positioning bolts.
• Detachable handle, hex wrench, tube cutter and mold lubricant.
• Instruction book, gloves and blow-molded carrying case included.

How durable and serviceable is the tool under shop conditions?

Constructed from high-strength carbon steel, the flaring body and punches resist wear from repeated forming operations. Replaceable punches and the included hex wrench make maintenance and part swaps straightforward to extend service life.

• High-strength carbon-steel construction for longevity.
• Wear-resistant surfaces on the punching and die contact areas.
• Replaceable OP1 punches for continued precise performance.
• Compact case protects components during transport and storage.

Who is this for: This flaring tool kit suits home mechanics, mobile technicians and small repair shops that work on vehicle brake and hydraulic lines using copper, aluminum or nickel-copper tubing. It’s aimed at users who need a portable, reliable tool to produce SAE-style 45° double flares and bubble flares on 3/16" and 1/4" tubing without investing in larger bench-mounted equipment.