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 force him to provide the necessary resources. Talbot has been working for the authorities all along and convinces Vyland and Royale that he is now ready to die on the ocean floor beside his family, eliciting a terror-stricken confession from the two men (their fear of death being the key that unlocks the confession) which is relayed to witnesses on the oil platform. Talbot then returns to the oil platform, where Vyland throws himself to his death from a ladder. Royale survives to be tried and sentenced to death and Talbot, politely turning down General Ruthven's offer of any reward