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TR470 Trio Sanding Drum Mandrel

The TR470 drum mandrel is designed especially for use on the Dremel Trio to hold a ½” sanding band. It includes two each of the extra fine (240), fine (120), and coarse (60 grit) sanding bands. Shapes wood and sands inside of curves. Stable base of the Trio provides perfect 90° edge sanding. Three quarter inch drum length provides 50% more capacity than standard rotary tool sanding drums.


  • For rough shaping and smoothing wood.
  • Sanding bands are easily replaceable on drums
  • Excellent for sanding curves and internal radii
  • Designed for use with the Dremel Trio


  • BIT DIAMETER MM: 12.7 mm
  • GRIT: 60,120,240
  • SHANK SIZE MM: 4.8 mm
  • SHANK SIZE US: 3/16"

Tool Kit Options

This tool is available as part of a kit.