Patent ID: 7328891
Filing Date: 2008-02-12
Classification: B25B

Abstract:
1. A clamp tool for woodwork or metalwork comprising a pair of clamping brackets spaced apart from each other and disposed on a shaft, wherein at least one clamping bracket is movable along the shaft to fasten a workpiece in cooperation with the other clamping bracket; a female screw member being disposed at one end of the shaft; a male screw member screwed to the female screw member being rotatable in a slide cylinder disposed outside at the end of the shaft; a handle for rotationally manipulating the male screw member being disposed at an outer end of the male screw member; and a guide portion being disposed between the shaft and the slide cylinder so that the female screw member does not rotate but moves axially by the rotation of the male screw member so as to allow the clamping bracket disposed outside the slide cylinder to move along the shaft.