Abstract: A ratchet tool includes a first rotating assembly including a seat, a first pawl, and a second pawl. The seat defines a first recess and a second recess. The first pawl is pivotally engaged in the first recess and the second pawl is pivotally engaged in the second recess respectively. The first pawl has a first protrusion and the second pawl has a second protrusion respectively. Further, a second rotating assembly including a ratchet wheel. The ratchet wheel includes the seat inserted therein. Further, a direction control assembly includes a shifter and a pushing member. The shifter is rotatable with respect to the seat between a first position in which the pushing member urges the first protrusion, a second position in which the pushing member urges the first and the second protrusions, and a third position in which the pushing member urges the second protrusion.

Abstract: A sleeve device includes a main unit having a sleeve with an open end face, a receiving space intercommunicating with the open end face, and a radial hole. An engaging member extends into the receiving space. A fixing member is mounted to an end of the receiving space opposite to the open end face. A pressing member is slideably received in the receiving space for pressing against the fixing member. The pressing member includes a cylindrical portion, an abutting portion, and a pressing portion, with the abutting portion and the pressing portion disposed on two ends of the cylindrical portion. A positioning member is slideably received in the radial hole for selectively pressing against an outer periphery of the cylindrical portion or the pressing portion. A ring is rotatably mounted around the sleeve and includes an inner periphery and a first recessed portion for selectively abutting the positioning member.

Abstract: A sleeve device includes a main unit having a sleeve with an open end face, a receiving space intercommunicating with the open end face, and a radial hole. An engaging member extends into the receiving space. A fixing member is mounted to an end of the receiving space opposite to the open end face. A pressing member is slideably received in the receiving space for pressing against the fixing member. The pressing member includes a cylindrical portion, an abutting portion, and a pressing portion, with the abutting portion and the pressing portion disposed on two ends of the cylindrical portion. A positioning member is slideably received in the radial hole for selectively pressing against an outer periphery of the cylindrical portion or the pressing portion. A ring is rotatably mounted around the sleeve and includes an inner periphery and a first recessed portion for selectively abutting the positioning member.

Abstract: A ratchet screwdriver includes an adjusting assembly. The adjusting assembly is selectively changable between a first position, a second position, and a third position. When the adjusting assembly is in the first position, a rib is located between the first and second ends of a slanting slot. First and second pawls are engaged with a ratchet portion. A position assembly is engaged in a first bore. A shank is able to drive the screwdriver bit in a clockwise direction or a counterclockwise direction. When the adjusting assembly is in the second position, the shank is able to drive the screwdriver bit in the clockwise direction. When the adjusting assembly is in the third position, the shank is able to drive the screwdriver bit in the counterclockwise direction.

Abstract: A ratchet screwdriver includes an adjusting assembly. The adjusting assembly is selectively changable between a first position, a second position, and a third position. When the adjusting assembly is in the first position, a rib is located between the first and second ends of a slanting slot. First and second pawls are engaged with a ratchet portion. A position assembly is engaged in a first bore. A shank is able to drive the screwdriver bit in a clockwise direction or a counterclockwise direction. When the adjusting assembly is in the second position, the shank is able to drive the screwdriver bit in the clockwise direction. When the adjusting assembly is in the third position, the shank is able to drive the screwdriver bit in the counterclockwise direction.

Abstract: A chuck includes a body, a connector, a bit-retaining device and a pusher. The body includes a first section, a second section, a hexagonal hole defined in the first section and a circular hole defined in the second section. The connector includes a substantially circular and toothed section fit in the circular hole of the body. The bit-retaining device is movably mounted on the first section of the body between a releasing position where a bit can be inserted into and removed from the hexagonal hole of the body and a retaining position where the bit can be retained in the hexagonal hole of the body. The pusher is movably disposed in the body and used to push the bit from the hexagonal hole of the body in the releasing position of the bit-retaining device.

Abstract: A quick switch hand tool includes a base board, a plate, a shell, and a cover connected together. A driving shaft is rotatably disposed in the base board, the plate, the shell and the cover. A switch means is mounted on the base board and is provided for switching the direction of the driving shaft. A quick actuating member is disposed on the driving shaft and provides the effect of quick actuating.

Abstract: A quick switch hand tool includes a base board, a plate, a shell, and a cover connected together. A driving shaft is rotatably disposed in the base board, the plate, the shell and the cover. A switch means is mounted on the base board and is provided for switching the direction of the driving shaft. A quick actuating member is disposed on the driving shaft and provides the effect of quick actuating.

Abstract: A joint is disclosed for connecting a handle with various bits. The joint includes an insert fit in the handle, a socket connected with the insert for receiving the bits, a first locking device installed on the socket for locking long bits to the socket and a second locking device installed on the socket for locking short bits to the socket.

Abstract: A bit-driving apparatus is provided between a handle and a bit. The bit-driving apparatus includes a hollow shaft and a bit receiver. The hollow shaft includes a first section for connection with the handle and a second section. The bit receiver includes a first space for receiving the second section of the hollow shaft and a second space for receiving the bit. The hollow shaft drives the bit receiver through a driver. At least one connector connects the internal wall of the first space of the bit receiver with the periphery of the second section of the hollow shaft.

Abstract: A joint is disclosed for connecting a handle with various bits. The joint includes an insert fit in the handle, a socket connected with the insert for receiving the bits, a first locking device installed on the socket for locking long bits to the socket and a second locking device installed on the socket for locking short bits to the socket.

Abstract: A selective one-way bit-driving apparatus includes a shaft for connection with a handle, a bit receiver including a plurality of teeth formed on an internal face, two one-way drivers pivotally connected with the shaft and each formed with a plurality of teeth for engagement with the teeth of the bit receiver and a switch installed on the shaft for causing the engagement of the teeth of at least one of the one-way drivers with the teeth of the bit receiver.

Abstract: A selective one-way bit-driving apparatus is provided between a handle and a bit. The selective one-way bit-driving apparatus includes a hollow shaft and a bit receiver. The hollow shaft includes a first section for connection with the handle and a second section. The bit receiver includes a first space for receiving the second section of the hollow shaft and a second space for receiving the bit. The hollow shaft drives the bit receiver in selective one of two directions through a selective one-way driver. At least one connector connects the wall of the first space of the bit receiver with the periphery of the second section of the hollow shaft.

Abstract: A selective one-way bit-driving apparatus includes a shaft for connection with a handle, a bit receiver including a plurality of teeth formed on an internal face, two one-way drivers pivotally connected with the shaft and each formed with a plurality of teeth for engagement with the teeth of the bit receiver and a switch installed on the shaft for causing the engagement of the teeth of at least one of the one-way drivers with the teeth of the bit receiver.

Abstract: A ratchet mechanism housing assembly for a ratchet screwdriver includes a main body including a compartment defined by a first lateral wall, a second lateral wall, a first end wall, and a second end wall opposite to the first end wall. A tool receiver has an end extended through the second end wall and received in the compartment of the main body. The end of the tool receiver has a ratchet wheel formed thereon. A first pawl includes two protrusions received in two first recesses in the first end wall. A recessed area is defined between the protrusions for fittingly receiving a protruded wall section between the first recesses of the first end wall. The first pawl further includes a first driving part having a first rectilinear edge that bears against a face of one of the teeth of the ratchet wheel. The first driving part further including a first arcuate engaging edge that is opposite to the first rectilinear edge and that bears against a first recessed wall section on the first lateral wall.

Abstract: A ratchet screw driver includes a housing, a pinion rotatably engaged in the housing, a sleeve rotatably engaged on the housing and engaged with the pinion in order to rotate the pinion, a shaft rotatably received in the housing, a notch formed in the shaft for receiving a pawl, a rod having a gear engaged with the pinion and having a projection for engaging with the pawl in order to rotate the pawl, the pawl is rotated when the rod is rotated by the sleeve via the pinion.