Drill bit shank from 0 to 7. The Morse taper allows the bit to be mounted directly into the spindle of a drill, lathe tailstock, or (with the use of adapters) into the spindle of milling machines. It is a self-locking (or "self holding") taper of approximately 5/8" per foot that allows the torque to be transferred to the drill bit by the friction between the taper shank and the socket. The tang at the end of the taper is only for ejecting the drill bit from the spindle, with the aid of a drift. The arbor of a drill chuck is often
Fear Is the Key (film) Fear Is the Key (film) Fear Is the Key is a 1972 film directed by Michael Tuchner and based on the 1961 novel of the same name by Alistair MacLean. The protagonist, Talbot, was played by Barry Newman, and the millionaire's daughter Sarah Ruthven by Suzy Kendall. The film features a soundtrack by Roy Budd plus an early film appearance by Ben Kingsley. John Talbot is talking on radio to a girl and another man who are flying a plane. He hears them being machine gunned to death by another plane. Some time later, Talbot appears in a small town