Many bike tool makers offer a wide variety of regular tools (screwdrivers, open end wrenches, etc) that can often be more easily and cheaply acquired at your local hardware store. This is, to a certain extent, true of the new Park Tool Socket Bit Set (SBS-1). However what Park has done is created a set of scokets including just the sizes you would need to work on your bike. The set is shop quality, and includes sizes for most every fastender on your bike. As a bonus they include a 1" socket which fits most of their cassette, freewheel, and bottom bracket tools. Further: at $33 for an eighteen piece set it is affordable for even the msot basic home mechanic's kit. This set plus a 3/8" drive ratchet and you're in business. If you are starting your own home shop, or just want to work on your bike more often, you need this set.

SBS-1 (all 3/8" drive)

3, 4, 5, 6, 8, and 10mm hex bits (10mm is extra long)

T25, T30, T40 Torx bits

8, 9, 10, 11, 12, 13, 14, 15mm and 1" sockets