Dremel 398 Digital - 2pc Carbon Motor Brush Set - 90931

Carbon Armature Motor Brushes

• Dremel 90931
• 2 piece
• Motor brushes consist of a coiled spring of metal with a piece of carbon at the end. They go under the brush cap and rest on the armature, providing the electrical connection to keep the tool running.
• Improve performance and extend the life of your tool
• The right brush means proper performance
• Replace motor brushes for longer motor life. Dremel recommends replacement with every 50-60 hours of use.
• Simply unplug the tool, open the brush caps and remove the carbon piece from the holder
• If there is less than 1/8" of carbon left on either brush, they both should be replaced
• Replacements for the model #398 digital Dremel rotary tool
  
• New but not in retail packaging