AOOSEDOO PTFE Hose Assembly Tool Kit — 4AN–10AN Reamer & Double-Ended AN Wrench, Blue

AOOSEDOO PTFE Hose Assembly Tool is a compact kit that speeds up and cleans up PTFE fuel-line assembly for 4AN, 6AN, 8AN and 10AN fittings.

Putting together braided PTFE fuel lines can be fiddly: the layered construction resists insertion, incisions get misshapen, and finding the right wrench for AN fittings adds frustration. This AOOSEDOO set brings together a reaming/liner-separator plug plus a double-ended AN wrench so you can prepare hose ends, insert olives, and tighten B-nuts and socket nuts with less time and fewer ruined fittings. The kit’s interchangeable plug design covers multiple AN sizes, making one tool useful across popular hose diameters.

How does the tool make PTFE hose ends easier to prepare?

The reaming plug reshapes the cut edge of the PTFE liner into a round profile so ferrules (olives) seat smoothly. A separate splitter action separates the braided jacket from the inner liner safely, avoiding nicking or jagged edges that cause leaks or difficult assembly.

• Reamer creates a clean, circular liner opening for reliable ferrule seating.
• Split function pushes braid back quickly for straightforward fitting insertion.
• Exchangeable plugs let you match the tool to 4AN–10AN hose sizes.

Which AN sizes are supported and how do I switch sizes?

This kit is built for the most common PTFE hose diameters used in aftermarket fuel and oil systems: 4AN, 6AN, 8AN and 10AN. The tool uses removable plugs so a single handle fits multiple sizes; simply swap the plug to match the hose you’re assembling.

• Works with 4AN, 6AN, 8AN and 10AN PTFE hoses.
• Pull-out plug design for quick size changes without extra tools.
• Recommended to use with matching AOOSEDOO PTFE hoses for best fit.

What does the double-ended AN wrench do that a normal wrench can’t?

The included double-ended wrench has two purpose-specific jaws: a 6AN socket-style jaw for holding socket nuts and a larger jaw for B-nuts. This combines two commonly needed sizes into one compact tool and reduces the chance of rounding off delicate alloy fittings.

• 6AN socket jaw (0.79 in) for tightening socket nuts securely.
• 8AN B-nut jaw (0.90 in) for locking B-nuts without slipping.
• Compact, double-ended form for convenience in tight engine bays.

How will this kit change my assembly workflow?

By reaming, separating braid, and providing the correct wrenching surfaces, the kit minimizes the fiddly steps that typically slow down PTFE assembly. You’ll spend less time shaving or fighting hose ends and more time completing reliable connections.

• Faster ferrule insertion thanks to properly shaped liner openings.
• Cleaner assemblies with less risk of frayed braid or cut liners.
• Fewer ruined fittings and less rework during installation.

Who is this for: The AOOSEDOO PTFE Hose Assembly Tool kit is aimed at home mechanics, professional tuners, race shops and anyone assembling aftermarket PTFE fuel or oil lines who wants a quicker, cleaner, and more consistent installation. It’s especially useful if you work with multiple AN sizes and prefer a compact, multi-function toolset that reduces wasted fittings and improves fitment precision.