RE: RC Tools
try this for little wrenches - this set goes down to 4mm - they have some other stuff as well including wrenches down to 5/64" and nut drivers down to 3/32" and 2mm.
[link=https://www.micro-tools.com/store/item_detail.aspx?ItemCode=SCR-913-00]https://www.micro-tools.com/store/item_detail.aspx?ItemCode=SCR-913-00[/link]