The Dremel 4486 Multi Chuck is a universal accessory holder designed to eliminate the need for multiple collets when changing accessories on Dremel multitools. This keyless chuck system provides fast, tool-free accessory changes, making it ideal for tradespeople and craftsmen who frequently switch between different bits and attachments. The multi chuck accommodates a wide range of accessory shank sizes from 0.4mm up to 3.4mm, covering the majority of standard Dremel accessories including grinding stones, cutting discs, polishing wheels, and engraving bits. The keyless design allows for quick hand-tightening without the need for additional spanners or collet wrenches, saving valuable time during detailed work. Particularly suitable for professionals working on multiple applications throughout the day, this chuck attachment streamlines workflow by reducing downtime between tasks. Whether you're engaged in precision engraving, metal polishing, or fine detail work, the multi chuck provides secure accessory retention whilst simplifying the changeover process. Features and Benefits: • Eliminates the need for multiple collets, reducing tool kit complexity • Keyless design enables fast, hand-tightened accessory changes • Wide capacity range accepts shanks from 0.4mm to 3.4mm • Compatible with standard Dremel multitool models Specifications: Collet Capacity: 0.4 - 3.4mm