TYPES AND USES - Continued
SPECIAL PURPOSE SOCKET WRENCHES (Cont)
The 90-degree offset handle socket wrench has a fixed
socket at the end of a bent handle. It is used for
removing and/or installing a nut or bolt which may not
be reached with a box or combination wrench.
The T-handle socket wrench has a fixed T-handle above
a fixed socket wrench. The T-handle socket wrench has
many uses. One of the more common uses is for
shutting off or turning on water or gas lines. The T-
handle permits the operator to apply the turning force
required to operate the valve.
The screwdriver-type socket wrench has a socket fixed
on the bottom of a screwdriver handle. They are used
to remove and/or install small nuts and bolts.
Stud removers may be either the cam-operated type or
the wedge type. They are used to remove studs from
their seats for replacement. A single stud remover can
be adjusted to remove different size studs.
The cam-operated type uses a concentric cam to get a
grip on the stud. The cam is tightened on the stud
through mechanical linkage between the drive shank
and the cam.
Wedge-type stud removers are made of a socket
housing and two metal wedges. The socket is placed
over the stud to be removed and the wedges are driven
into the socket to hold the stud. The socket housing is
now turned with a handle to remove the stud.