To safely use a hand drill, loosen the chuck and insert the appropriate drill bit, then tighten the chuck. Most hand drills require a special tool to firmly tighten the chuck. Place the bit's tip where you want to cut a hole, making sure the bit is at the same angle as the desired hole. Turn the cranking handle to rotate the bit and drill the hole. With smaller drill bits, be careful not to apply excess pressure on the handle or the bit may bend or break. http://www.joystartools.com/hobby-tools/hand-drills/