So much frustration for so little. A tool with a hex head (whatever its size) can certainly be considered as a standard tool. Park isn't responsible for what tools you have on your bench... As for using an old chain for a chainwhip, perfectly doable - I built one from a wood hammer handle, two bolts and two bits of chain. Works great, except not as narrow as a real one, so ok to remove a cassette, but not so great in 2-chainwhips freewheel cog removal jobs (for those who get into that kind of amusement).