Limiter on the drill, fast
You can quickly make a stop on the drill of the desired diameter from a piece of a wooden bar. Cut a piece of a bar with a hacksaw, about 2/3 of the length of the spiral part of the drill. We drill through the bar into the end and approximately in the center with the necessary drill (along the fibers). Using a knife, we give the limiter a rounded shape, not necessarily perfect. The depth of the drill with this limiter is controlled by the movement of the drill shank in the chuck.