| 摘要 |
A shallow-well socket suitably driven by the drive post of a rotary tool to apply torquing force to, and to turn, a fastener having a head of thickness H. In one embodiment the shallow-well socket has a generally tubular body of length C less than or equal to two and one-half times the thickness H of a head of a fastener that is turned by the body, C<=2.5H. A distal-end region of length D internally suitable to fit the head of the fastener, ½H<=D<=H, connects to a central region of length E serving as a back wall to a distal-end cavity 0<=E<=½H, connects to a proximal-end region of length F internally suitable to fit over the drive post of a rotary tool, ½H<=F<=H. D+E+F=C. The socket is particularly beneficial of use with a thin double-ended ratchet (sprocket), or a socket, wrench with (1) an elongate body having (2) a rotatable turning head at each end of the elongate body, and (3) a mechanism within the body for mechanically linking rotation of each turning head to the other.
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