A shank with a threaded head used primarily to hold and use cut-off wheels.

• The 402 mandrel is used primarily with cut-off wheels but is used with the following Dremel accessories: 409, 411, 412, 413, 420, 423, 425, 426, 456, 511, 512, 540 and 541
• Used primarily with Dremel polishing bits and accessories
• For use in all Dremel rotary tools
• 1/8 In. shank