I had an angle grinder setup in a chopsaw stand. Something similar to this:
It was the first time using the setup and I didn't notice that the cord came into the area of the grinder disc. I cut through ~1/3 of the strands of copper in the cord. The grinder still seems to be working. I put electrical tape around the cut area.
Do I need to replace the cord? If I don't replace the cord what are the downsides, the grinder is fairly cheap.