Dremel 4486 Dremel Chuck really works and is by far the most valuable accessory for the Dremel. It closes down to near 0 for the smallest of drill bits (much smaller than a sewing needle) yet still holds larger bits than the "large" hex collet. Dremel 4486 Dremel Chuck is well made and durable, withstanding everything from concrete and tile dust to oily metal shavings. It must be tightened with considerable force to resist slipping under heavy use but that's to be expected.
I don't understand why Dremel doesn't include this great Dremel 4486 Dremel Chuck as a standard accessory with all their Multi-Tools. Dremel 4486 Dremel Chuck 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. However, I love this Dremel 4486 Dremel Chuck.
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