I have a new investment cast breech block that I would like to use in a coil mainspring Winder but it does not have the 2 small holes for the main spring. Can any body tell me where I can get thoes dementions or does any body have a junk block that I could buy or borrow to find the correct location. I have drawings of the leaf spring block without the holes, but I dont want to guess on the placement, I would think they would be critical.
Thanks
Thanks