Collets. What Do I Have

[GTO Kroh]

First set of collets I have are 3c. Looks like a 2mt adaptor. And I dunno what the 2 bigger ones are but they are 3c also. 21 ranging from 1/16 to 1/2.


What am I missing here. And anyone know what they are worth?


Mostly south bend. Some precision bren. And a couple say royal on them.


Next these ones are precision bren. And a 2mt chuck. These are 1/16 to 21/32.
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[kd4gij]

Well on the 3c collets the 2 on the left are what they call blank collets, you bore then out for the size you need. Next to them is the spindle adapter. It goes in the spindle and you need a draw bar/tube that goes through the spindle and tightens the collet.

The second set I don't know what they are called. but looks like they would be goon in the tail stock of a lathe or the spindle of a drill press.

 

[David VanNorman]

You need the draw bar and a thread protector for the spindle thread.