The Craftsman drill bits that I have that are made to fit those quick change speed lock holders do not give me very good results due to the fact that they don't fit snuggly into the holder when locked. I have a Craftsman holder and also a DeWalt holder and the bits move around in both. I can only assume that this is the case for many if not all of these style holders and bits. I would buy the cheapest bits you can find because your results won't merit spending a lot of money for the bits.
111,111,111 = 12,345,678,987, 654,321