socket bolt

Mach .: A bolt pa ing through a thimble or sleeve between the parts bolted together. socket-chisel. 8. A stout chisel employed for heavy mortising and having a hollow tang to receive the handle. It is used with a mallet. socket-drill, s. A drill for chamfering or enlarg. ing a hole to a given depth. socket-joint, s. [BALL-AND-SOCKET JOINT.]