I have a Dremel Set with all the trimmings, plus a - bought chuck - for standards rather bulky. Any collets are unnecessary with it, but are very practical. This reviewed on here collets Set includes four collets (including lock nut, which was already present in the original set but). Well I bought the 7-piece metal drill accessories, and do not find the suitable collet for three of the drill (1.2, 2.0, and 2.8 mm). With 30,000 rpm is not to be trifled with, because I would rather use the chuck, rather than use with perhaps possible tolerances the drill to the next bigger or -Minor collet. At the price, and quite a bit more, you would have the missing three parts certainly is possible to add packing.
