Dremel 4486 MultiPro Chuck

I don't understand why Dremel doesn't include this great little chuck as a standard accessory with all their Multi-Tools. It is so much easier, faster and less frustrating than fumbling with the tiny collar and wrench that the tools come equipped with. If you change bits on your Dremel often, as most users do, you will quickly come to appreciate the 4486. As for me, the 4486 is comparable to the Flex-Shaft as one of the single most worthwhile attachments available for adding versatility and conveience.