VEVOR Electric Metal Nibbler 625W Nibbler Metal Cutter 1000RPM High Speed Rotor 4mm Metal Nibbler Replaced Blades Storage Case Sheet Metal Nibbler for Cutting Stainless Steel, Aluminium

the $42 unit (https://www.vevor.com.au/metal-nibbler-c_11028) will cut that easily, and quite neatly. I have one of those units (same model, just different brand from before vevor existed) and it runs well on a cordless (or corded) drill, and I use it all the time for cutting vents in corrugated (or trimdek profile) roofing materials.

It won't cut it, the hole is too small.

Minimum cutting radius is 300mm as shown in specifications

No, it won't cut a 100mm circular hole.

Can't see how it can cut glass but they advertise in it's applications that it can. As it uses a punching action the glass would shatter. Have to watch some of these foreign sites for incorrect advertising.

No, it can't cut glass.