For rotary tool #245, 250, Series 3 and later, #260, 270, 280, Series 2 and later, #275, 285, 370, 380, 395, 595, free wheeler 850, mini mite 750, Moto-Flex tools 232 and 332, Chainsaver tools 241, 246, 277 and 8504, flexible shaft attachments 225 and 90199, Handpiece 235 and 237.