Drill bits are cutting tools used to create cylindrical holes. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes. This article describes the types of drill bits in terms of the design of the cutter. The other end of the drill bit, the shank, is described in the drill bit shank article. Drill bits come in standard sizes, described in the drill bit sizes article. A...
Drill bits are cutting tools used to create cylindrical holes. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes. This article describes the types of drill bits in terms of the design of the cutter. The other end of the drill bit, the shank, is described in the drill bit shank article. Drill bits come in standard sizes, described in the drill bit sizes article. A comprehensive drill and tap size chart lists metric and imperial sized drills alongside the required screw tap sizes. The term drill can refer to a drilling machine, or can refer to a drill bit for use in a drilling machine. In this article, for clarity, drill bit or bit is used throughout to refer to a bit for use in a drilling machine, and drill refers always to a drilling machine.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
Страшные девяностые закончились, но поделены еще не все деньги и сферы влияния. В городе идет жестокая борьба за власть, в которую оказывается вовлечен молодой писатель. Победит ли тот, кто сумеет заставить его сказать правильные слова? Что важнее для него самого — принять сторону сильного и потерять себя либо пойти против всех, выбрав собственный путь? Писателю придется решать, что для него...
Оставить комментарий