Center punch sleeve for round drill index

I guess I bought the same drill bit set from Aliexpress, and I really liked this drill bit holder. When I looked at it I knew I should pout something in that hole in the middle.
I hit upon the one thing no drill index ever includes but should... a center punch. So I fitted up a holder for mine. The STL here is for the center punch holder, that fits inside of https://www.thingiverse.com/thing:3098087.