I ask because I want to get a couple of the knotted wire cup attachments to remove the paint and rust on sections of my undercarriage. Home Depot only had them in DeWalt 3". I have two angle grinders: a Makita and a Milwaukee. All the different brands in the store "appeared" to use the same mounting system i.e. a threaded shaft and some kind of nut to hold the attachment in place. But, before I shell out $14 a piece for these cups, I'd like to be sure that they'll fit one of my grinders. The guy there tonight didn't seem all that sure of the answer, so I came here where I know someone will be able to tell me
