I don't see it listed yet, but if you are working on road bikes (especially) the go-to tool is the Post that fits in the seat tube (in place of the seat post) and gives you something to clamp tightly with your floor stand without crushing or marring the frame-tube or paint. Not sure what it is called, mine is made by Park.
p.s. I get Kroil at the local industrial supply or Body shop supply house. Most hardware stores do not stock it around here.