What are these ?

[Scruffy]

Found about 20 of these in a coffe can of horizontal mill cutters.as you can see they are knurled on one side, all the same angle, heavy and really,really hard. 2 1/2 inch tall and 1/2 thick.
Could they be ground for shaper or lathe tools?
Thanks Ron

 

[Dan_S]

The serrations remind me of what you would see on a insert woodworking sharper head.

Like this.

 

[4ssss]

Looks like they are thread rolls

 

[4GSR]

Old boring tools to a boring bar used on a horizontal boring machine. Goddard & Goddard used similar arrangement on their milling tools. Have their catalog around here somewhere.

 

[Scruffy]

4gsr. Could they be reused for anything?
Thanks ron

 

[4GSR]

4gsr. Could they be reused for anything?
Thanks ron

Sure. They are HSS. Grind them up to use just about any way you want.

 

[Silverbullet]

The original insert tooling , old style.

 

[Scruffy]

To 4gsr their way to hard and heavy to be hs steel , I think their carbide. Thanks ron

 

[4GSR]

To 4gsr their way to hard and heavy to be hs steel , I think their carbide. Thanks ron

They very well could be carbide. I would think Tungsten or Stellite, next step to being carbide.

 

[4ssss]

I still say they are thread roller dies

https://im01.itaiwantrade.com/16e69ca0-3d3e-4280-81e4-0b4be70efb20/CS-C_3-360x360.JPG