TIGHT SPOTS, NOOKS, AND CORNERS: They're all easily within reach when you add the 225 flex-shaft attachment to your Dremel rotary tool. FLEXIBLE: 36-inch shaft attaches easily; enabling craftsman, jewelers, woodworkers and DIYers the extended control and flexibility to drill, cut, carve, and polish even the most delicate of projects. WIDE COMPATIBILITY RANGE: Fits Dremel rotary tool models 4300, 4000, 3000, 200, 100, 8260, 8250, 8240 and 8220. CRAFT OR DIY LIKE AN EXPERT: Use the Flex Shaft to work on projects such as detail sanding, carving, engraving, cutting, cleaning and polishing. INTEGRATED SHAFT LOCK: Button on the hand piece allows for easy accessory changes.