As stated - it's not really "set all", but it will get you started. Most of the snaps I use are the "line" type (line 20, line 24). I've actually found that, when using the included anvil, I end up with a little round spot that sticks out of my snap cap. So, now I either use the flat side of the anvil or just hammer it directly on my granite. Basically, the dished out portions of the anvil are too deep and the let the head distort. I thought it was my snaps at first, then I realized I just needed a flatter surface to stop them from disfiguring.