Abstract: A torque device for use in tools comprises a tubular member; a bit receiver axially received at the front end of the tubular member and its front end may couple with tools; a shank inserted at the rear end of the tubular member and including a resilient element fitted thereon, and including a receiving chamber formed at the rear end thereof for receiving a driving tool, and a selector mechanism defined between the shank and the bit receiver; a fitting sleeve fitted on the shank for biasing against the resilient element and including inner threads arranged on the inner wall thereof, between the fitting sleeve and the tubular member being provided with a guiding mechanism; an adjusting member fitted at the rear end of the shank including outer threads for screwing with the inner threads of the fitting sleeve, and between the adjusting member and the tubular member being fixed a confining mechanism.

Abstract: An interchangeably manual or automatic ratchet wrench tool comprises a tool body including a through grove disposed at one end thereof, for receiving a rotating member including peripheral teeth and driven teeth formed therearound, respectively. The tool body further includes a driving piece attached therein and having two engaging tabs mounted thereon for correspondingly engaging with the peripheral teeth of the rotating member, thereby driving the rotating member in a manual operating mode. Moreover, the tool body includes a motor driven by a power source assembly and affixed at another end thereof, the motor includes a worm shaft disposed at one end thereof, for meshing with a worm gear which is rotatably disposed in the tool body, and between the worm gear and the driven teeth of the rotating member is defined with a transmission set for couplingly urging the rotating member in an electric operating mode.

Abstract: An interchangeably manual or automatic ratchet wrench tool comprises a tool body including a through grove disposed at one end thereof, for receiving a rotating member including peripheral teeth and driven teeth formed therearound, respectively. The tool body further includes a driving piece attached therein and having two engaging tabs mounted thereon for correspondingly engaging with the peripheral teeth of the rotating member, thereby driving the rotating member in a manual operating mode. Moreover, the tool body includes a motor driven by a power source assembly and affixed at another end thereof, the motor includes a worm shaft disposed at one end thereof, for meshing with a worm gear which is rotatably disposed in the tool body, and between the worm gear and the driven teeth of the rotating member is defined with a transmission set for couplingly urging the rotating member in an electric operating mode.

Abstract: The present invention relates to an interchangeably manual or automatic ratchet wrench that the user may couple an electric hand grip having a motor therein to the rear end of a stud member of a handle so as to urge a cartridge to rotate in an electric operation manner, or couple a manual hand grip to the rear end of the stud member of the handle so as to urge the cartridge to rotate in a manual operation manner, such that achieving a multi-purpose operation.

Abstract: The present invention relates to an interchangeably manual or automatic ratchet wrench that the user may couple an electric hand grip having a motor therein to the rear end of a stud member of a handle so as to urge a cartridge to rotate in an electric operation manner, or couple a manual hand grip to the rear end of the stud member of the handle so as to urge the cartridge to rotate in a manual operation manner, such that achieving a multi-purpose operation.

Abstract: Provided is a screwdriver comprising a pivotal removable revolving cylinder containing screwdriver tips a pivot bucket with the revolving cylinder disposed therein, and a flexible limiting member fastened at either cut on the shank of a handle for fastening the handle in its operation or storage position. In a revolving cylinder replacement operation pull the handle rearward to disengage the shank with the revolving cylinder, pull the pivot bucket upward by pivoting until it is disposed externally of a slot in a body, remove a pivot pin for replacing the revolving cylinder, mount the revolving cylinder in the pivot bucket, and pivot the pivot bucket downward to dispose in the slot again.