Cutting terracotta pot base?

[Neil2]

Once you own an angle grinder, you will be amazed by how many things you can do with it. After your basic circular saw, it is probably one of the most useful tools in your toolbox. A 4 inch one is quite cheap, but get a 5 inch if you are planning on any heavy duty grinding or cutting.

[Archena]

Six words: try on a cheap pot first.

I'd forgotten about the tape thing - that should work. And honestly, you can get a knock-off angle grinder that will do the job if you don't want to invest in a decent one yet. Mind you, it's not gonna take much if any abuse but you can at least do the job and try it out before deciding on a better one (probably two minutes after you first use it).

Buy some plain, cheap terra cotta pots and perfect your technique on them before trying anything on the big one. You can use them in the planting beds for mint and other intrusives so it won't be a waste (the bottoms can be busted up to use in the bottom of other containers).