I have several home improvement projects that would be made enormously easier if I had a decent angle grinder with both grinding and cutting wheels to attach to it. But I've never used or bought one before. Arbitrarily, going to Lowes (not that I am endorsing Lowes in any way shape or form here), and arbitrarily picking Dewalt as a brand:
Some models seem to focus on amps, and some seem to focus on voltage. This is confusing to me, as I would have expected the main rating on a grinder to be, say, torque or RPM. So I ask:
- When does one care about the amp rating on an angle grinder, and why?
- When does one care about the volt rating on an angle grinder, and why?
- Are these the only two quality metrics that really matter for angle grinders?