Bonvoisin Flaring Tool Kit 1/4-3/4 HVAC Single Flare Tool - Precise

In this review the Bonvoisin Flaring Tool Kit is judged as a practical, lightweight single-flare solution for HVAC and refrigeration hobbyists and pros who work with soft copper and aluminum tubing. The biggest reason to consider it is the eccentric type cone that produces uniform flare walls, delivering consistent single flares across 1/4 to 3/4 in tubing sizes. It is not a double-flare tool, but for installations and repairs that require neat, reliable single flares this 5 in 1 kit covers the common tube diameters and includes a cutter and deburring knife for a complete workflow.

Key Features

• Eccentric Type Cone: The eccentrically mounted hardened steel cone gives a rolling action that creates even metal flow and uniform flare walls without rapid wear.
• Size Range: Works with tube outer diameters from 1/4 in to 3/4 in (6/9/10/12/16/19mm), covering most HVAC and refrigeration tubing needs for single flares.
• Limit Piece: The built-in limit piece lets users precisely control the flared tube length so measurements are faster and more repeatable.
• Clutch in Handle: The rotating handle includes a clutch that automatically disconnects when the flaring action finishes, reducing the chance of overworking the tube.
• Ultralight Construction: Extruded aluminum alloy construction keeps the kit under 1kg so it is comfortable to hold and use for extended periods.
• Complete 5 in 1 Kit: The set includes gantry, metric and inch flaring clamps, a pipe cutter and a burr trimming knife for a full preparation and flaring workflow.

Who It's For

This kit suits HVAC technicians, refrigeration installers and DIYers who need a compact, portable tool for making single flares on copper or aluminum tubing in the 1/4 to 3/4 in range. Its light weight and included cutter and deburring knife make it convenient for field service where carrying a small set is important.

It is not for users who require double flares or specialty automotive brake flares; those needing bubble or double-flare profiles should look for a dedicated double-flare tool. Also, if working exclusively with hardened steel tubing this kit is intended for soft metals and may not be appropriate.

Pros & Cons

Pros

• Produces consistent, uniform single flares thanks to the eccentric hardened steel cone.
• Includes a pipe cutter and burr trimming knife so tubes can be cut and finished before flaring.
• Lightweight aluminum body makes it comfortable to use during longer jobs.
• Limit piece and clutch improve repeatability and prevent overworking the flare.

Cons

• Only performs single flares, so it will not replace a double-flare tool for brake lines or applications needing that profile.
• Some users report mixed feelings about the ratchet release mechanism, so leverage and release may take an adjustment period.

Specifications

Brand	Bonvoisin
Flare type	Single flare only
Applicable tube outer diameters	1/4 in, 5/16 in, 3/8 in, 1/2 in, 5/8 in, 3/4 in (6/9/10/12/16/19mm)
Cone style	Eccentrically mounted hardened steel cone
Included tools	Gantry, metric clamp, inch clamp, pipe cutter, burr trimming knife
Material	Aluminum alloy body with hardened steel cone
Weight	Under 1kg

Our Verdict

The Bonvoisin Flaring Tool Kit is a well engineered, lightweight single-flare kit that delivers consistent, neat flares for HVAC, refrigeration and general soft-metal tubing work. It is excellent value for anyone who needs reliable single flares across common tube sizes and prefers a compact kit that includes cutting and deburring tools. Professionals who require double flares or specialized automotive profiles should choose a dedicated double-flare tool instead.

Frequently Asked Questions

Can this tool make double flares?
No, this kit only performs single flares; it is not designed for double-flare profiles.

What tube sizes does it support?
It supports tube outer diameters from 1/4 in to 3/4 in (6/9/10/12/16/19mm).

Is the kit suitable for aluminum tubing?
Yes, the tool works with soft metal tubing including copper and aluminum.