Please tell me what I bought...

[jwmay]

The knurled portion spins, but the pin I assumed was moveable doesn't go anywhere. I put some oil on them and may try to get one apart tomorrow. Any ideas?

 

[brino]

Which pin doesn't move?

I assume it is some sort of stop that fits into a table with fixed spaces holes and then the knurled bolt head tightens in down.
Not sure what the machine/tool would be.

-brino

 

[jwmay]

Neither pin moves. I believe a pin should move. I'll crack one open. Your idea makes sense to me.

 

[Mike_Mac]

Neither pin moves. I believe a pin should move. I'll crack one open. Your idea makes sense to me.

Arn't they knurling tools?

 

[jwmay]

I have no idea what they are. But maybe?

 

[matthewsx]

Hope you didn't pay much

John

 

[pontiac428]

They could just be fit gauges from somewhere on the production line.

 

[jwmay]

Yeah I don't think they're anything worth saving. They came in a cardboard box labeled "machinist stuff" for 20 bucks. I saw 20 dollars worth of utility in it. These were just in there. I didn't want to throw them away before asking around. I got a bunch of reamers, gauges, drill bits, some endmills, some hss, and a micrometer. Nothing flashy. But 20 is fine for what I got.

 

[matthewsx]

Then hold onto them until you have a use, they don't look that big....

John