TR470

                                  TR470 Trio Sanding Drum Mandrel Model # TR470 Product Specifications 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   DIMENSIONS Bit Diameter mm: 12.7 mm Shank Size US: 3/16" Overall Length: 2 Shank Size mm: 4.8mm Shank Diameter: 0.1875 Warranty: Product Defects Only Grit: 60,120,240 Material: Emery Contents: Trio Mandrel,(2) 60 Grit, (2) 120 Grit, (2) 240 Grit Sanding Bands Color Code: Purple Bit Diameter Inch: 1/2"            https://www.dremel.com/en_US/products/‐/show‐product/accessories/tr470‐trio‐sanding‐drum‐mandrel 10‐12‐18