Pipe Notching Made Easier: A Tube Angle Cutting Jig for 25, 32, 40 & 50 mm Tube

Building a roll cage, a ute rack, a trailer frame or a gate? Any time one tube meets another, the end needs to be notched (or fish-mouthed) so it sits snug against the other tube. A tight fit makes for a stronger, cleaner weld. A sloppy one means gaps you have to fill with weld.

Marking out and cutting notches freehand is slow and hard to repeat. A jig helps.

The FNQI-3D Pipe Notching Kit

The Pipe Notching Kit is a reusable angle-cutting jig for workshop fabrication.

Compatible tube sizes

• 25 mm
• 32 mm
• 40 mm
• 50 mm

Key features

• Helps position tube for repeatable angle cuts
• Useful for welding and fabrication work
• Compact workshop tool
• Australian made by FNQI-3D

It's a fabrication aid. Cutting tools and tube are not included.

Tips for better notches

• Measure your tube first. Confirm the outside diameter matches one of the four supported sizes.
• Secure the tube. Clamp it firmly so nothing shifts mid-cut.
• Test fit before welding. Dry-fit the joint and clean up any high spots with a file or flap disc.
• Repeat with confidence. Once you've got the setup right for one joint, the jig makes it easier to match the next.

Safety

Wear eye and hearing protection and gloves when cutting and grinding steel, keep guards fitted to your tools, and keep the jig clear of the cutting path.

FAQ

What tube sizes does it suit?
25, 32, 40 and 50 mm.

Does it include a hole saw or cutter?
No. Cutting tools and tube are not included.

Is it reusable?
Yes, it's designed as a reusable workshop jig.