Abstract: A chuck includes a driving element, a sleeve movably installed on the driving element and a ring fit in the socket. The driving element includes a socket for receiving a bit, a shank extended from and a shoulder formed between the socket and the shank. The sleeve includes a shoulder formed on an internal side for contact with the shoulder of the driving element for avoiding detachment thereof from the driving element in a direction. The restraint is fit in the socket for avoiding detachment of the sleeve from the driving element in an opposite direction.

Abstract: A screwdriver kit includes a main body which has a first end adapted for connecting to a tool and a second end, including a column projecting from the first end and having an opening formed therein longitudinally; a linkage having a first end and a second end, with the second end slideably received in the opening; a cap member, which the second end of the linkage is installed therein, being movable between a first position and a second position; wherein the cap member is coupled to the main body as the cap member is in the first position; wherein the cap member is detached from the main body along the linkage as the cap member is moved toward the second position.

Abstract: An extension chuck tool includes a shank body and sleeve. The shank body includes a first end forming a working end for connecting to a tool. The shank body includes a second end defining a connecting end for connecting to a power tool. A shank is formed between the first and second ends. The sleeve is pivotally disposed on the shank of the shank body. There is relative rotation between the holding device and the shank body.

Abstract: A chuck includes a driving element, a sleeve movably installed on the driving element and a ring fit in the socket. The driving element includes a socket for receiving a bit, a shank extended from and a shoulder formed between the socket and the shank. The sleeve includes a shoulder formed on an internal side for contact with the shoulder of the driving element for avoiding detachment thereof from the driving element in a direction. The restraint is fit in the socket for avoiding detachment of the sleeve from the driving element in an opposite direction.

Abstract: A toolbox includes two shells, a lock and a plurality of tool holders. The shells are pivotally connected to each other. The lock can lock the shells to each other. The tool holders can be firmly attached to and easily removed from the shells, thus allowing various combinations of tool holders to be used together with the shells.

Abstract: A toolbox includes a body, a first holder pivotally connected with the body between a lie-down position and a stick-out position, a first elastic element for biasing the first holder to the stick-out position, a first lock for locking the first holder in the lie-down position, a second holder pivotally connected with the body between a lie-down position and a stick-out position, a second elastic element for biasing the second holder to the stick-out position, and a second lock for locking the second holder in the lie-down position.

Abstract: A toolbox apparatus includes a toolbox, a cover and a lifting device. The cover is pivotally installed on the toolbox. The lifting device is used to slowly lift the cover from the toolbox. The lifting device includes at least one rotator provided between the toolbox and the cover.

Abstract: A toolbox includes a body, a first holder pivotally connected with the body between a lie-down position and a stick-out position, a first elastic element for biasing the first holder to the stick-out position, a first lock for locking the first holder in the lie-down position, a second holder pivotally connected with the body between a lie-down position and a stick-out position, a second elastic element for biasing the second holder to the stick-out position, and a second lock for locking the second holder in the lie-down position.

Abstract: A toolbox includes a first shell, a second shell, a holder and a binder. The second shell is connected with the first shell. The holder holds tools. The binder retains the holder in the shells in a releasable manner. The binder includes a first claw and a second claw for engagement with the first claw in order to clamp the holder.

Abstract: A chuck apparatus is provided for holding a tool bit. The tool bit includes a drill, two blades, another working head and an annular groove defined therein. The chuck apparatus includes a socket, a ball detent, a collar and a joint. The socket defines an axial hole, a peripheral hole communicated with the axial hole and two slots for receiving the blades. The ball detent is put in the peripheral hole for insertion in the annular groove. The collar is movably mounted on the socket between a locking position for pushing the ball detent into the annular groove and a releasing position for allowing the ball detent to leave the annular groove. The joint includes a first section secured to the socket and a second section for connection with a motor.

Abstract: A chuck includes a socket, an elastic detent and a sleeve. The socket includes a hole defined axially therein, an upper slot cut therein and a lower slot cut therein. The elastic detent includes an upper transverse section and a lower transverse section. The elastic detent is mounted on the socket so that the upper transverse section of the elastic detent enters the hole through the upper slot and that the lower transverse section of the elastic detent enters the hole through the lower slot. The sleeve includes an annular flange formed on an internal face. The sleeve can be moved on the socket so that the annular flange can move the upper and lower transverse sections from the hole along the upper and lower slots, respectively.

Abstract: A chuck apparatus is provided for holding a tool bit. The tool bit includes a drill, two blades, another working head and an annular groove defined therein. The chuck apparatus includes a socket, a ball detent, a collar and a joint. The socket defines an axial hole, a peripheral hole communicated with the axial hole and two slots for receiving the blades. The ball detent is put in the peripheral hole for insertion in the annular groove. The collar is movably mounted on the socket between a locking position for pushing the ball detent into the annular groove and a releasing position for allowing the ball detent to leave the annular groove. The joint includes a first section secured to the socket and a second section for connection with a motor.

Abstract: A toolbox includes a first shell, a second shell, a holder and a binder. The second shell is connected with the first shell. The holder holds tools. The binder retains the holder in the shells in a releasable manner. The binder includes a first claw and a second claw for engagement with the first claw in order to clamp the holder.

Abstract: A chuck includes a socket, an elastic detent and a sleeve. The socket includes a hole defined axially therein, an upper slot cut therein and a lower slot cut therein. The elastic detent includes an upper transverse section and a lower transverse section. The elastic detent is mounted on the socket so that the upper transverse section of the elastic detent enters the hole through the upper slot and that the lower transverse section of the elastic detent enters the hole through the lower slot. The sleeve includes an annular flange formed on an internal face. The sleeve can be moved on the socket so that the annular flange can move the upper and lower transverse sections from the hole along the upper and lower slots, respectively.

Abstract: Here is disclosed a connector for connecting a tool with a tool bit including a polygonal portion formed thereon and an annular groove defined therein. The connector includes a socket, a detent, a sleeve and a positioning device. The socket includes a polygonal hole axially extending in an end thereof, a space in communication with the polygonal hole and an aperture extending through the socket in a radial direction. The detent is received in the aperture. The sleeve includes a recess defined in an internal face. The sleeve is rotationally mounted on the socket between an unlocking position and a locking position. In the unlocking position, the recess is aligned with the aperture so as to receive a portion of the detent in order to allow complete removal of the detent from the space, thus allowing insertion of the polygonal portion into the polygonal hole.