TM 9-243TYPES AND USES - ContinuedSPECIAL PURPOSE SOCKETWRENCHES (Cont)Stud removers may be either the cam-operated type orthe wedge type. They are used to remove studs fromtheir seats for replacement. A single stud remover canbe adjusted to remove different size studs.The 90-degree offset handle socket wrench has a fixedsocket at the end of a bent handle. It is used for remov-ing and/or installing a nut or bolt which may not bereached with a box or combination wrench.The cam-operated type uses a concentric cam to get agrip on the stud. The cam is tightened on the studthrough mechanical linkage between the drive shankand the cam.The T-handle socket wrench has a fixed T-handle abovea fixed socket wrench. The T-handle socket wrench hasmany uses. One of the more common uses is for shut-ting off or turning on water or gas lines. The T-handlepermits the operator to apply the turning force requiredto operate the valve.Wedge-type stud removers are made of a socket hous-ing and two metal wedges. The socket is placed over thestud to be removed and the wedges are driven into thesocket to hold the stud. The socket housing is nowturned with a handle to remove the stud.The screwdriver-type socket wrench has a socket fixedon the bottom of a screwdriver handle. They are used toremove and/or install small nuts and bolts.25-8
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