Dremel 225-01 Flex-Shaft. Integrated shaft lock button for easy accessory changes. Comfort grip hand pies allows finger tip control to cut, grind, sand, sharpen, polish, and more. 36 inch flexible shaft. Wuick connect attaches to rotary tool in seconds. Works with Dremel Models 275/100, 285/100, 300, 395, 398, 400, 780, and 800. Complete operating instructions and square hole drive nut enclosed.