I didn’t have my phone to take pictures. I don’t think it’s the same as a Balas. Erickson is interchangeable I believe . This is R-8 to a thirty taper quick change.
Do you have a Balas collet chuck. I used to have, probably 500 Martin master collet pads in all sizes,hex round, emergency. I gave them all away. I think there are a few boxes left if you have a use for them. I think some are Warner & Swasey collet pads, same a Balas
Martin