Just fitted a brand new Wicks Angle grinder blade and it seemed to be wobbling. Check the ususal things - looks like the blade itself is at least 4mm out of true!! Is this normal for concrete cutter AG blades?
I've only used AG for cutting metal before and just checked one of those blades and it's bang on flat.
I won't be using the concrete ones anyway (pack of 2 and both are out of true). Seems incredibly dangerious to me.