Sounds if your tool has a loose or broken brush this is a small carbon object inside that makes motor run, dremel does sell replacement brushes for most of what they mfg. look where ever real dremel bits and tools are sold ck package back to see if your model number is serviced by this brush pack
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Sounds if your tool has a loose or broken brush this is a small carbon object inside that makes motor run, dremel does sell replacement brushes for most of what they mfg. look where ever real dremel bits and tools are sold ck package back to see if your model number is serviced by this brush pack