Abstract: An anti-disengagement structure of a tool head for insertion into an insertion recess of a fastener is provided. Abutting faces extend from a periphery of an end face of a working portion. At least one abutting face is partly formed with a groove filled with an elastic member which is partly protrusive out of the groove and beyond the surface of the abutting face. The largest extent between the protruded-out part of the elastic member and the abutting face of another elastic member is larger then the largest inner extent of the insertion recess. Thereby, with the stretchable characteristic of the elastic member, the fastener can be smoothly inserted into the insertion recess and abutted against an inner surface of the insertion recess to achieve anti-disengagement effect.

Abstract: A tool box is provided, including a board member and a connecting member. Each lateral face of the board member is formed with a first connecting portion, and a mounting hole is disposed in each first connecting portion. Two ends of the mounting hole are respectively formed with a second connecting portion. Each second connecting portion is detachably assembled in the mounting hole. The board member can be connected with another board member through the connecting members, and each lateral side can be connected with the board members.

Abstract: A tool box is provided, including a board member and a connecting member. Each lateral face of the board member is formed with a first connecting portion, and a mounting hole is disposed in each first connecting portion. Two ends of the mounting hole are respectively formed with a second connecting portion. Each second connecting portion is detachably assembled in the mounting hole. The board member can be connected with another board member through the connecting members, and each lateral side can be connected with the board members.

Abstract: An anti-disengagement structure of a tool head for insertion into an insertion recess of a fastener is provided. Abutting faces extend from a periphery of an end face of a working portion. At least one abutting face is partly formed with a groove filled with an elastic member which is partly protrusive out of the groove and beyond the surface of the abutting face. The largest extent between the protruded-out part of the elastic member and the abutting face of another elastic member is larger then the largest inner extent of the insertion recess. Thereby, with the stretchable characteristic of the elastic member, the fastener can be smoothly inserted into the insertion recess and abutted against an inner surface of the insertion recess to achieve anti-disengagement effect.

Abstract: An anti-disengagement structure of a tool head for insertion into an insertion recess of a fastener is provided. Abutting faces extend from a periphery of an end face of a working portion. At least one abutting face is partly formed with a groove filled with an elastic member which is partly protrusive out of the groove and beyond the surface of the abutting face. The largest extent between the protruded-out part of the elastic member and the abutting face of another elastic member is larger then the largest inner extent of the insertion recess. Thereby, with the stretchable characteristic of the elastic member, the fastener can be smoothly inserted into the insertion recess and abutted against an inner surface of the insertion recess to achieve anti-disengagement effect.

Abstract: An anti-disengagement structure of a tool head for insertion into an insertion recess of a fastener is provided. Abutting faces extend from a periphery of an end face of a working portion. At least one abutting face is partly formed with a groove filled with an elastic member which is partly protrusive out of the groove and beyond the surface of the abutting face. The largest extent between the protruded-out part of the elastic member and the abutting face of another elastic member is larger then the largest inner extent of the insertion recess. Thereby, with the stretchable characteristic of the elastic member, the fastener can be smoothly inserted into the insertion recess and abutted against an inner surface of the insertion recess to achieve anti-disengagement effect.

Abstract: A tool box is provided, including a board member and a connecting member. Each lateral face of the board member is formed with a first connecting portion, and a mounting hole is disposed in each first connecting portion. Two ends of the mounting hole are respectively formed with a second connecting portion. Each second connecting portion is detachably assembled in the mounting hole. The board member can be connected with another board member through the connecting members, and each lateral side can be connected with the board members.

Abstract: A close fitting structure of a sleeve tool is provided. A through-hole is formed to penetrate a sidewall of the sleeve tool. The close fitting structure includes a body. Sharp engaging teeth are disposed at a front end of the body. The close fitting structure is received in the through-hole of the sleeve tool and adapted to move forward and backward spirally. The close fitting structure is inserted deep into the sleeve tool, such that the sharp engaging teeth disposed at the front end of the body and a nut mesh in a close-fitting manner. Accordingly, the close fitting structure enables the sleeve tool and the nut to mesh efficiently and to be loosened and tightened easily and in a slide-free manner.

Abstract: This present invention discloses a socket for wrenches, which comprises a main body having a proximal section, a distal section, and a central axis extending from proximal section to distal section. The main body has recess at inside on the proximal section with punctures on the recessed periphery and each puncture has a moving part mounted therethrough. A sleeve is in slide-fitting communication with the main body, which has an inner wall provided a plurality of push fronts thereon, each push front surface rises gradually by a plurality of continuous steps from one end to the other. When the sleeve is rotated of axially moved with respect to the main body, the gradual rising steps of the push fronts are pushing the moving parts toward the central axis to match with varieties of scales of work pieces.

Abstract: This present invention discloses a socket for wrenches, which comprises a main body having a proximal section, a distal section, and a central axis extending from proximal section to distal section. The main body has recess at inside on the proximal section with punctures on the recessed periphery and each puncture has a moving part mounted therethrough. A sleeve is in slide-fitting communication with the main body, which has an inner wall provided a plurality of push fronts thereon, each push front surface rises gradually by a plurality of continuous steps from one end to the other. When the sleeve is rotated of axially moved with respect to the main body, the gradual rising steps of the push fronts are pushing the moving parts toward the central axis to match with varieties of scales of work pieces.

Abstract: A driver head, including a body with a connecting end, a control member, a light emitting element and a power supply element; a control member is pivotally installed in the transversal groove of the body; an electrically conducting plate is contained in the conducting groove of the control member; the outer circumferential surface of a light emitting element is in contact with the body; a plurality of power supply elements are installed in the third groove; a resilient element is installed in the third groove; the control member has a conducting groove, such that the electrically conducting plate can be installed in the conducting groove, and the control member can be turned to drive the electrically conducting plate or the control plane to contact the power supply element, for controlling an electric connection.

Abstract: This invention comprises a main body that has a proximal end and a distal end; the central axis of the proximal end extends to the distal end. The main body has recess at inside on the proximal end with punctures on the recessed periphery; each puncture has a moving part mounted on to, the moving part has its primary end and secondary end. A sleeve is in slide-fitting onto the outside of the main body, which has its central axis parallel with the central axis of the main body; inner wall of the sleeve has a plurality of push fronts, each push front contacts with the primary end of the moving part, each push front surface rises gradually from one end to the other. When the sleeve is rotating on the main body, the gradual rising push fronts are pushing the moving parts toward or away from the central axis to match with varieties of scales of work pieces.

Abstract: A socket adapter includes a main body, a movable member, an elongated rod, a ball, and an elastic member. Thus, the socket adapter is mounted on a socket to provide a torque on the socket so as to rotate the socket. In addition, the socket adapter is mounted on and detached from the socket easily and conveniently.

Abstract: A socket drive head structure includes a drive head, an actuating rod, an actuating knob, a positioning ball, and an elastic member. Thus, the socket drive head structure is mounted on and detached from a socket rapidly, easily and conveniently, so that the user needs not to exert a large force to remove the socket from the socket drive head structure. Further, the outer threaded portion of the actuating knob is directly screwed into and locked in the threaded knob hole of the actuating rod, so that the actuating knob is actually fixed on the actuating rod easily and conveniently, thereby facilitating assembly and maintenance of the socket drive head structure.