Mandrels are used to mount different accessories to use with your Dremel rotary tool. The 402 Dremel Mandrel features slotted screw head and a 1/8 In. (3.2 mm) shank. The 402 mandrel is typically used to hold accessories like cutting wheels and sanding discs. The flathead end of the wrench included in most rotary tool kits can be used to loosen or tighten the screw on the mandrel when doing accessory changes.

• 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