WTF is it, MACHINISTS?

[nine4gmc]

Hey guys, I got these at a machinist auction last year or two, they mostly rebuilt engines and transmissions but there were lots of different kinds of machines in there and these came in a box lot of other tools I recognized and won.

Cig lighter for size reference. Second pic is what I assume to be adjustable reamers?

 

[LXCam]

Might be for sizing cam bearings?

 

[2oolhound]

Yeah, possibly blades for an adjustable hone/reamer.

 

[Ed ke6bnl]

Looks like a tool used to expand a boiler tube in the header to seal

 

[bmxdad]

Honing wedge... look like the ones used on a Sunnen hone.

 

[Air21]

As someone who pays his mortgage by running Sunnen hones they do kinda look like wedges, but I have no idea what kind of stones they push. Usually there is a groove pattern on one side to capture the stones and guide them along. My first thought was that they were some kind of parallels but I can't figure out what for. They do look more like wedges.

Maybe it's an adjustable arbor for something?

The black one in the middle I know for sure is for lighting your cigarettes