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Title: Useless
Review: The mandrel used for this wheel has only a screw to hold the wheel to the mandrel. Consequently it tears away as soon as you touch the item you are cutting. I had a masonry nail in a chimney wall where a picture once hung. I thought the easiest way to deal with the nail was to cut it off with a cutting wheel. I touched it as gently as I could and the wheel went flying. Useless!
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