Here is the drift inserted through the bottom of the head. I didnt have a cameraman so if i hadn't inserted it yet my right fingers would be over the die's and wedge to keep them from pushing out while i inserted the nipple on the end of the drift into the bottom whole of the die. Once the drift is in the die hole you have hold the drift perfectly center and straight so the race inserts evenly. If the race is going in correctly you shoukd inly have to give forceful taps, you shouldn't have to pound