Hi Brent. One year later:
Thank you for sending me a message. I don't look in my profile for these messages so I
never know when there are any. The collets I have for the Weiler Primus I had, are 23 mm in diameter. And those for the Matador etc. are larger. I have a drawbar for them,
and I don't know if I should grind a spindle bush to fit, so I can use them with my
Chipmaster, or I should buy a Pratt-Burnerd KC collet chuck instead.