Dremel Screw Rotary Tool Mandrel features a 1/8" shank designed specifically for use with polishing accessories. This mandrel is an essential tool for precision rotary work, providing a secure and reliable hold for various polishing attachments. Its compatibility with a wide range of polishing accessories makes it a versatile addition to your Dremel rotary tool collection, enhancing your ability to achieve detailed and polished finishes on your projects. Model Number: 401