Looking for tips on using a 4.5" angle grinder for ground metal art. I've used a drill, and borrowed a 7" buffer with a sanding disc, so I understand some basics, but the angle grinders that many artists user are substantially faster (11k rpm). In a video by Craig Fraser, he goes over some basic steps on applying the grinder to the metal for various effects, but I'm looking for more detail on the physical interaction of the grinder and the hands and what to expect regarding kick back when performing certain tasks. Video's that I've come across show artists doing an initial grinding to smooth out the overall surface of the metal to remove blemishes, etc. However the equipment is applied much like a buffer, with the flat face of the wheel being applied to the metal (as opposed to the corner or edge). I know from experience working with stripping paint off a car with a drill that doing such a thing can result in destabilization/bucking (and bad marks), but is this problem limited to drills due to how they are held? Is it relatively easy to place the face of the disc onto the metal surface? I mean, I'm sure it's doable, I've watched people do it with the same equipment I have, but what sort of forces should I expect to deal with outside of the general rotational force. Not sure if that makes total sense, but I'm just trying to come at things from a safety perspective here, would rather spend time doing art, not healing.