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Hi Chris - I have no experience with Timesaver of any colour, in that I bow to your superior knowledge. All my grinding/lapping operations have been with carborundum abrasives, and with those, they very definitely do embed themselves into the softer material to abrade the harder material.From there came the well known engineering latin maxim "non-illegitimus carborundum" commonly quoted by my generational colleages, which roughly translates as "don't let the b******s grind you down"! Chris