Help - What are these?

[silence dogood]

The two items on top shook a brain cell. After some research. I believe those two rods with cones are called "steeple headed rivets" used for fabricating boilers. Mark

 

[Dave Smith]

the two cone shaped tools on the top would be nice to peel off the wax on the cone part---they could be coated with diamonds---I have several with 1/2" shanks that are diamond coated and were used to bevel inside ends of fiberglass tubes---if they are just smooth then they may be used in a press to flare tubing-----Dave----see--I wasn't fibbing about having them---these have 1/2" shafts and are 2 3/4" long and are diamond coated

 

[AR1911]

I did peel one off, and it's a smooth as a baby's butt. Ground and maybe polished all over. It does have a recessed cone in the end as for a center, about 1/8".
If it were a flaring tool, would it require that level of finish?

 

[John Hasler]

Bullnose centers for pipe?

 

[Dave Smith]

I did peel one off, and it's a smooth as a baby's butt. Ground and maybe polished all over. It does have a recessed cone in the end as for a center, about 1/8".
If it were a flaring tool, would it require that level of finish?

yes possible in a big press ----I am sure if it has a center drilled in the cone it is designed to be made very precise and if it is used in flaring tubes you would want a very high level finish---you could make a live center for your lathe for use on large tubes if you have a good sized lathe-----if nothing else they could be stored with your arbor or bench press tools---------------Dave

 

[David S]

Would the bottom one be part of an eye piece from a centering scope?

David