Tight spots, nooks, and corners - they're all easily within reach when you add the 225 Flex-Shaft Attachment to a corded rotary tool or the 10.8V Lithium-ion Cordless. The flexible, 36" shaft attaches easily and adds a new level of versatility to your project capabilities, with fingertip control for polishing, wood carving, sanding, engraving and more. Dremel Flex Shaft Features: - Comfort grip hand-piece - allows comfort and fingertip control - Integrated shaft lock button - for easy accessory changes - More flexible cable - new 5" bend radius provides more flexibility during use - Quick connect -attaches to your rotary tool in seconds - Accepts up to 1/8" shank accessories - Works with collet system and the Dremel Chuck - Fits Tool Model: 400, 398, 395, 300, 285, 275, 800 Includes - Dremel Flex Shaft attachment - Square drive nut - Instructions