no idea.

Is this soome type of tool or punch?  
Thank you.

I can't tell if there is any or was any threading on the shaft part, but it sure resembles some type of needle valve.

There are no threads 72Chey. What is a needle valve? 

I thought nedle valve at first also, but since its not threaded, I dont know...and on the other hand, all needles for valves will not be threaded.

Garabaldi, here is the definition from wiki-
"A needle valve has a relatively small orifice with a long, tapered, conical seat. A needle-shaped plunger, on the end of a screw, exactly fits this seat. As the screw is turned and the plunger retracted, flow between the seat and the plunger is possible; however, until the plunger is completely retracted the fluid flow is significantly impeded. Since it takes many turns of the fine-threaded screw to retract the plunger, precise regulation of the flow rate is possible"

Scribe? Monty

Scribe? Monty

I agree (guess)  it looks familiar.  Maybe someone made it into a scribe by putting a point on it.  Steel or Brass?

It does look like a scribe Monty. Hard to figure out the purpose of the hex head though, unless it was to provide some weight for it to bear down, such as what might be on the working end of a straight edge contraption to scribe arcs or curves on metal?  I was wondering too about that depression on the shaft thinking it might have a name stamped in. It looks though as it might have been pressed there to permantently hold the point within the shaft?

It does look like a scribe Monty. Hard to figure out the purpose of the hex head though, unless it was to provide some weight for it to bear down, such as what might be on the working end of a straight edge contraption to scribe arcs or curves on metal?  I was wondering too about that depression on the shaft thinking it might have a name stamped in. It looks though as it might have been pressed there to permantently hold the point within the shaft?

Maybe from a set of Trammel points?

scratch awl or scribe or some type of needle valve part

I cleaned it up and there is no name on the shaft. I was able to pull the needle part out, so maybe it was not an original part. 

It may be a scribe from a combination square. The right angle piece usually has a scribe inserted into it. El cheapo's probably will not have them. It is common for them to loosen up and fall out unnoticed. I have had several do that thru the years.

Mark S.

 
 

It may be a scribe from a combination square. The right angle piece usually has a scribe inserted into it. El cheapo's probably will not have them. It is common for them to loosen up and fall out unnoticed. I have had several do that thru the years.

Mark S.

 
 

That was what I was thinking. 

GG~

Well I was going to post a photo of mine. I grabbed it as I was leaving work today and the scribe was GONE!

Like I said, they loosen up and fall out unnoticed even from an expensive Starret. Dang it!

Mark S.

I understand what a pencil scribe is, so would this scribe be used with concrete or something other? 

A combination square is used generally on wood. But could be used on anything.

The scribe I was talking about would be used to mark metal.  Like when you disassemble an engine to replace the rings. You would want the pistons to go back into the same hole so you'd mark the head and the piston.  However I can see where it could be used for a combination square.  Monty