Dremel 490 Dust Blower A must have for any Craft & Hobby enthusiast. The Dremel 490 Dust Blower fans away dust for greater visibility to your work piece. By removing fine debris from your line-of-sight, the small air blower is great for detailed projects, sanding, engraving, and carving. The 490 fits on all rotary tools with a standard collet nut; can also be used with the 225-01 Flex Shaft attachment. FEATURES: Blows dust away for greater visibility of the work piece Great for sanding, engraving, and carving Also fits the 225-01 Flex Shaft Attachment Fits on all rotary tools with a standard collet nut (except 4200) Always handy because it’s always on the tool