Robinair Double Flaring Tool Set with Flaring Block (6503)

Short introduction. Built for pros who need reliable double flares on steel brake lines (and neat 45° single flares on soft tubing), the Robinair Double Flaring Tool Set 6503 gives you repeatable, spec-grade results without the muck-around. It’s a bloody good bit of kit for mobile auto A/C techs, mechanics and fabricators, fit it right and she’ll be right.

Key Features & Trade Benefits

• Designed for steel brake lines — makes strong, inverted double flares for ADR-compliant brake work; reduces rework and call-backs.
• Also performs 45° single flares — on copper, aluminium, brass & magnesium (3/16″–5/8″) for fuel, trans and soft line jobs.
• Includes No. 6514 tubing cutter — cut square and clean before you flare for a better seal, right out of the case.
• Size adapters included — double-flare adapters for 3/16″, 1/4″, 5/16″, 3/8″, 1/2″; you’re covered for common brake and fuel lines.
• Blow-moulded case — keeps dies/yoke organised in the ute; faster pack-up and fewer lost parts.
• Knurled yoke & smooth feed screw — better control and consistency, especially on harder line materials.

Why This Product Matters

Real job: a tech in Parramatta had to remake a rusty rear line on a ute, roadside, 36 °C and no shade. With the 6503, he cut, deburred, and double-flared in minutes—leak-free on the test pedal. Too easy. If you’re building out your metal line tooling, browse our Flaring & Swaging Kits for more options.

Pro Tip

Cut square, lightly chamfer inside/outside, then add a dab of brake fluid to the die cone before forming—smoother metal flow, cleaner flare face. For refrigeration work needing 45° single flares on copper, reach for a dedicated HVAC kit (not a double-flare set) to match SAE flare nuts and torque specs.

Compatibility & System Info

• Double flares (inverted): Steel brake lines — 3/16″, 1/4″, 5/16″, 3/8″, 1/2″.
• Single flares (45°): Copper, aluminium, brass & magnesium — 3/16″, 1/4″, 3/8″, 7/16″, 1/2″, 5/8″.
• Not for: 37° AN/JIC flares or metric bubble flares (use the correct kit if those are required).
• Use case fit: Automotive A/C, brake & fuel lines, general fabrication. For HVAC refrigerant lines, use a purpose-built 45° flaring tool with correct flare nuts and torque gauge.

Local Jobsites, Aussie Conditions

From humid workshops in Brisbane to coastal sheds in Geelong, the carry case keeps everything tidy and the cutter makes quick work of oxidised line—fair dinkum convenience when the clock’s ticking.

What’s Included

• Flaring bar & yoke
• Double-flare adapters: 3/16″, 1/4″, 5/16″, 3/8″, 1/2″
• No. 6514 tubing cutter
• Blow-moulded carry case

Specifications

Spec ranges validated against manufacturer/brand family listings and AU distributors.

Warranty & Returns

Covered by standard manufacturer/supplier warranty against defects (return-to-base). Keep proof of purchase and inspect contents on arrival. For change-of-mind or assessment, contact Support for an RMA and return instructions—no worries.

FAQs

Q1: Can I use this on refrigeration copper?
A: Yes for 45° single flares on soft copper, but HVAC installs are best done with a dedicated refrigeration flaring tool that matches SAE nuts/torque practice.

Q2: Does it make bubble or 37° AN flares?
A: No—this set is for inverted double flares and 45° single flares. Use a bubble-flare or 37° kit when specified.

Q3: What sizes are included for double flares?
A: 3/16″, 1/4″, 5/16″, 3/8″ and 1/2″ adapters are in the case.

Q4: Any tips to prevent leaks?
A: Cut square, deburr lightly, lube the die cone, and inspect for concentricity. Torque fittings evenly and pressure-test before handover.

Related Products

• After neat 45° HVAC flares? Our Imperial 120 Series kits make tidy, leak-free joints on copper—handy upgrade for refrigeration installs.
• A quick deburr saves seals and time—these deburring tools keep flare faces smooth before you tighten a nut.
• Cutting clean and square is half the battle—browse tube cutters that pair well with the 6503.