How to cut circles in masking tape

Do a Google search for "compass cutter". Been meaning to pick one up myself for wheel masks.

that or stick an exacto blade where the pencil would be in a regular compass. But the compass cutter will yield better results.

Here's a page describing how to do it with a compass cutter:

http://www.ffscale.co.uk/page4a.htm

I also use a Circle/Compaqss cutter. You can find them in most arts-supply stores and there are also ones used for cutting clothes by quilters, etc.,

I use an Olfa circle cutter. I've also been known to use a circle template but it's very hard to do and I avoid it if at all possible. The blade tends to want to cut into the template that's trying to guide it.

Thanks. Compass Cutter it is then!