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Other types of keyrings are made of leather, wood and rubber. These are the central component to a keychain. Keyrings were invented in the 19th century by Samuel Harrison. [1] The most common form of the keyring is a single piece of metal in a 'double loop'. Either end of the loop can be pried open to allow a key to be inserted and slid along ...
The first known example of a tumbler lock was found in the ruins of the Palace of Khorsabad built by king Sargon II (721–705 BC.) in Iraq. [1] Basic principles of the pin tumbler lock may date as far back as 2000 BC in Egypt; the lock consisted of a wooden post affixed to the door and a horizontal bolt that slid into the post.
Lock bumping is a trend in burglaries, [10] [11] as the technique can make it easy and fast to break into homes without needing too much special equipment or leaving any trace of forced entry. It works almost as well as having a key, [12] [13] and a set of ten rapping keys can make the criminals capable of opening 90% of common tumbler locks.
In machining, a tool bit is a non-rotary cutting tool used in metal lathes, shapers, and planers. Such cutters are also often referred to by the set-phrase name of single-point cutting tool , as distinguished from other cutting tools such as a saw or water jet cutter .
A hex key (also, hex wrench, Allen key and Allen wrench, Unbrako or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses ().. Hex keys are formed from a single piece of hard hexagonal steel rod, having blunt ends that fit snugly into similarly shaped screw sockets.
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
The Keychain Access application does not permit setting an empty password on a keychain. The keychain may be set to be automatically "locked" if the computer has been idle for a time, [6] and can be locked manually from the Keychain Access application. When locked, the password has to be re-entered next time the keychain is accessed, to unlock it.
ANSI B94.11M-1979 sets size standards for jobber-length straight-shank twist drill bits from 1/64 inch through 1 inch in 1/64 inch increments. For Morse taper -shank drill bits, the standard continues in 1/64 inch increments up to 1¾ inch, then 1/32 inch increments up to 2¼ inch, 1/16 inch increments up to 3 inches, 1/8 inch increments up to ...
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