I bought a 3 inch knotted cup brush which felt like a good deal. Except they failed to mention that this brush is for a metric thread grinder, not a 5/8 thread grinder! The brush itself seems pretty well made and yes all wire brushes shed bristles so wear PPE to be sure so the brush is fine but their listing info sucks I was in the market for a new grinder so I bought them with a metric thread and an adapter so the rest of my wheels would work on them, otherwise it would have been a refund.
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