Prefer the MK319BS's instead of CCC32's
When I was working on my wings I tried using the CCC-32's from Spruce when I ran out of the MK-319-BS's and in my case I found that the mandrels didn't break off cleanly. I ordered another hundred MK-319-BS's from Vans and gave all my CCC-32's away. Next time you need to place an order with Vans just get another hundred or so. Vans is the only place I found who carry the MK-319-BS's. If no one else comes through for you let me know and I'll send you a few - just PM me. My next order to Van's will request another hundred.