Patent ID: 6363819
Filing Date: 2002-04-02
Classification: B25B

Abstract:
A knockdown hand tool structure comprising:a grip; a screwdriver stem; a fitting post; a socket; a hexagonal elongated stem implanted centrally at a front end face of the grip; a rear end of the socket comprising a rectangular fitting hole; a front end of the socket comprising a polygonal tool socket; a front end of the elongated stem comprising a central hexagonal fitting hole; a stop sleeve being fitted on the front end of the elongated stem; the screwdriver stem comprising a hexagonal stem body; two ends of the screwdriver stem comprising different shaped screwdriver heads; the screwdriver stem comprising annular engaging grooves each with V-shaped cross-section and a depth at equal intervals; the fitting post comprising a short cylindrical body; a rear end of the fitting post comprising a hexagonal fitting hole; a first steel ball inlaid in one side of the hexagonal fitting hole; a front end of the fitting post comprising a projecting rectangular fitting section; a second steel ball inlaid in one side of the rectangular fitting section; the screwdriver stem fixedly inserted into the fitting hole of the elongated stem of the grip, whereby by the V-shaped annular engaging grooves of the screwdriver stem, a projecting length of the stem can be changed for application to various holes with different depths and diameters so as to permit tightening or untightening of a screw therein when applied to a nut; and the fitting post and the socket being fitted over the screwdriver heads of the screwdriver stem.