[denmansoft]

Wet and dry grinder is mostly for sharpening tools like chisels etc.
Get some old steel and clamp it down.
Then practise with your new hand grinder rounding edges, cutting grooves, grinding welds.
These are great tools in the right hands. They can easily get away if you are not holding it right, with the right pressure etc.

I wouldn't want to learn the hard way on a nice new Hydraulic Top Link.