Bretto- BRM (Brush Research Manufacturing) the people that make the popular hones often called "Dingle Berry" or "Flex Hones" say its ok and actually sell hones for brass, bronze and other soft metals like aluminum. I am no metallurgist but I have honed brass many times on other projects- like an old MG midget and it went on to run many thousands of trouble free miles before I parted with it. Again- I'm no expert- just pointing out that some "experts" say its ok. So long as it was cleaned well, I would have no problem doing it again. We sometimes do things on the "farm" that I am sure some professor of something somewhere would tell us its wrong to do, but we get the job done and keep on working

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