Dewalt Collet

Hello dear forum,
Can I to remove the collet from the nut?? or is fixed?? I had 0.25 inch collet, and I want to use V bit 60 degree (shank diameter is 6mm). So, what you recommend?? to use another collet with nut?? or to use adapter fpr the V bit 6 mm shank diameter??

Collet is not fixed.

If wanting to use other than stock shaft diameter one can either use adapters or purchase collets with different diameters.

Elaire do this, plus custom hole diameters: