Drill bit shank The name comes from the German "Stecken – Drehen – Sichern" (Insert – Twist – Secure). In German-speaking countries the back-formation "Spannen durch System" (Clamping System) is used, though Bosch uses "Special Direct System" for international purposes. The triangle shank is almost always made by machining three flats on round bar stock. It is intended as a minor modification of a straight shank, still allowing it to be held in a 3-jaw drill chuck, but allowing higher torque transmission and limited slipping. The Morse taper twist drill bits pictured right are used in metalworking. The full range of tapers is
Fear Is the Key of his choosing, walks off alone. A film appeared in 1972 directed by Michael Tuchner. The protagonist, Talbot, was played by Barry Newman, and the millionaire's daughter Sarah Ruthven by Suzy Kendall. The movie features a soundtrack by Roy Budd. , by Crosby, Stills and Nash, contains the lyric "Fear is the lock, and laughter the key to your heart." Fear Is the Key Fear Is the Key is a 1961 first-person narrative thriller novel by Scottish author Alistair MacLean. In the prologue, set in May 1958, John Talbot, owner of Trans Carib Air Charter Co is at an airfield