While that die grinder is OK for the money, I do get right narked when they cant sell a fully configured unit with complete set of imperial and metric collets. Fortunately these KATSU style collets are available from AIM tools or the Bay, a full set costing about £7 delivered. If you get that set, you will then have 1/4, 1/8, 6mm, 3mm and a spares in 6mm and 1/8. There may be somewhere that sells an individual 1/4 collet but since the cost was modest I payed for the full set.
Annoyance likewise for the non standard collar size (although it is at least made of metal, unlike some). I know it isn’t going to bust a gonad to make up a shim 40/43mm for common holders, but why should I have to… ? I mean, who are these people?
What I would really like to find is a similar powered spindle with sensible speeds for drilling, say 500 to 2000 RPM for use as a tool post drill (at a similar price). I hope somebody spots the gap in the market before I drop off my perch.