These work well. I used them occasionally by mistake until they were only two or three inches wide and giving me no problems. On some other brands I've used, the abrasive does not extend from the perimeter to the center of the wheel, but ends after about an inch. Not so with these. The ones that arrived had a slight offset - more like a grinding wheel than a completely flat cut-off wheel. Angle grinders are dangerous and I'm much better off using Dewalt discs than the off-brand version.
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