Piranha Tube Notcher. The UK made Tubela Piranha Tube & Pipe Notcher, capacity is from 3/4"OD to 2.5"OD (19mm - 63.5mm) Tube or Box. At any angle or off centre. Just position the tube in the two supplied V-Blocks, tighten the Clamp as needed and notch.
eBay
Pipe and Tube Machines Ltd.
eBay
The Ol' Joint Jigger RTN-100 quickly notches tubing of up to 2 inch. Manufactured in the States by Ol'Joint Jigger Inc. The company ceased production a few years ago. I purchased direct from the States but never used it. It is still in its original box with full instructions for use. No hole cutters are included but these are available on our E Bay site under Lennox hole cutters.
eBay
RA3 for 1-1/2", 2". RA2 for 3/4", 1", 1-1/4". RA1 for 1/4", 3/8", 1/2". First two photos are too show what the product is, not the actual item.
eBay
1 x Pipe & Tube Notcher. ☑️ Universal Drill Compatibility – Works with a drill press or low-speed hand drill (not included). Fits standard chucks with 1/2"–5/8" (12.5–16mm) spindle threads. Can be used on a drill press or low-speed hand drill.
eBay
Abrasive belt size 75 x 1525mm.
eBay
Heavy-duty pipe notcher made of durable steel and corrosion-resistant aluminum for long-lasting use in industrial settings. Adjustable cutting angle from 0 to 50 degrees allows accurate notching for 3/4" to 3" round tubing, ensuring clean welds.
eBay
1 Pipe & Tube Notcher. ✔ Universal Compatibility – Can be used on a drill press or low-speed hand drill (NOT included). Spindle threads 1/2" to 5/8" (12.5mm & 16mm) ensure a secure fit for most standard drill chucks.
eBay