I have a vice on my drill press to clamp mold into. I use a 1-4 inch drill and drill the body about 3-4 inch, then use a small bit and turn mold over after marking where I want the bit to line up and drill each center hole, then angle the mold to drill next row of tails, after that row of tails I angle the mold again and drill next row of tails. My vise will slide as I turn handle to do next hole. Do not have to adjust but one time per row,for that row of tails will have same angle. I could drill body bigger but this way I can make it 2 tone and body is smoother after dipping,I use tweezers to dip with. I hope I am not confusing anyone