A free tool that gets thrown away

[Snaparxon]

Bearing cups and bearing cones with the cages removed. These are handy for removing/installing seals and bushings. Also useful installing bearing cones and cups.

Second pic aren't free but also very handy, bushing installer/removers

[BuckHenry]

I save them too, but you have a much better selection than I do.

[J.A.F.E.]

I have used them on occasion to drive in a race but never kept them. Now I will - thanks for the tip!

[Snaparxon]

I measure each one I acquire on new jobs and as long as it is a .001 bigger or smaller than any I already have I keep it.

[strik9]

I scrap a dozen a month usually after they are used to drive the new ones in. 

I never thought to save any as regular tools.  Probably won't as we would just lose them in the piles of crap.

[muddy]

I scrap a dozen a month usually after they are used to drive the new ones in. 

I never thought to save any as regular tools.  Probably won't as we would just lose them in the piles of crap.

Or you spend 20 minutes looking for the right one.....

[strik9]

Easier to just scrap them all and save the time.   I got too much junk now.