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Types and Uses - Continued - 14256_156
Types and Uses - Continued - 14256_158

Tools And Their Uses - Hand tools and what they are used for
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TM  9-243 TYPES  AND  USES  -  Continued SOCKET  WRENCHES The  socket  wrench  consists  of  a  round  metal  sleeve  with a square opening in one end for insertion of a handle, and a 6-point or 12-point wrench opening in the other. They are available in both common (short) and deep (long)  lengths.  The  length  of  the  socket  does  not  deter- mine its size. Socket wrenches usually come in sets. The square or drive end may vary in size from 1/4 to 1 inch. In socket sets, the drive end determines the size; for  example,  a  1/4-inch  drive  set  may  contain  nine  sock- ets ranging in size from 3/16 inch through 1/2 inch. In 3/8-inch drive, the smallest socket would be 3/8 inch. This  overlap  in  size  allows  better  control  by  the  user  and prevents  breakage  of  either  the  socket  or  the  equipment from using the wrong size handle. A universal joint socket and spark plug socket are examples of specially designed sockets. The universal joint  socket  is  used  when  it  is  necessary  to  reach  around an object. The spark plug socket has a rubber insert. This insert protects the ceramic insulator when remov- ing and/or installing the spark plug. All sockets must be used with some type of handle. Sockets  are  used  to  remove  and/or  install  common-size nuts or bolts. 2 5 - 5







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