Taper Shank Drills
Morse Taper drill bits are self locking into Morse Taper chuck. They have a horizontal "Tang" on the end, this is for the easy removal of the drill bit when finished using a Drift.
The taper is approximately 5/8" per footthat allows the torque to be transferred to the drill bit by the friction between the taper shank and the socket.
Using a variety of sockets and sleeves, smaller drill bits are able to be used in larger chucks.