Abstract: A handle adapted for storing a tool bit therein includes a handle body and a bit retainer. The handle body has an outer surface that surrounds a longitudinal axis and that has opposite surface parts. The handle body further has a slot formed through the opposite surface parts of the outer surface of the handle body. The bit retainer is disposed in the slot of the handle body, and includes a bit receiving portion formed with at least one bit receiving hole that is adapted for insertion of the tool bit therein, and a pivot portion connected to the bit receiving portion and pivotally retained in the slot. The pivot portion is pivotable relative to the handle body about a pivot axis such that the bit receiving portion is movable relative to the handle body between a bit concealing position and a bit accessing position.

Abstract: A ratchet driving mechanism includes a main body, an adjusting ring, and a ratchet wheel. The main body includes a grip-connecting member and a rotary seat connected fixedly to the grip-connecting member. The rotary seat is formed with two parallel insertion slots, in each of which two pawls are biased by a spring to move away from each other. The adjusting ring and the ratchet wheel are sleeved rotatably on the rotary seat. When the adjusting ring is disposed in an anchoring position, the pawls engage the ratchet wheel so as to prevent rotation of the ratchet wheel on the rotary seat. When the adjusting ring is disposed in a first-direction position or a second-direction position, two of the pawls engage the ratchet wheel so as to allow for rotation of the ratchet wheel on the rotary seat in only a corresponding direction.

Abstract: A chuck device for a hand tool includes a socket and an engaging piece. The socket defines a shank-receiving groove, and is formed with a through-hole that is in spatial communication with the shank-receiving groove. The engaging piece is disposed movably in the through-hole in the socket, has a tapered end, and is movable relative to the socket between an engaging position, where the tapered end thereof is disposed in the shank-receiving groove in the socket, and a disengaging position, where the tapered end thereof is disposed out of the shank-receiving groove in the socket.

Abstract: A ratchet driving mechanism includes a main body, an adjusting ring, and a ratchet wheel. The main body includes a grip-connecting member and a rotary seat connected fixedly to the grip-connecting member. The rotary seat is formed with two parallel insertion slots, in each of which two pawls are biased by a spring to move away from each other. The adjusting ring and the ratchet wheel are sleeved rotatably on the rotary seat. When the adjusting ring is disposed in an anchoring position, the pawls engage the ratchet wheel so as to prevent rotation of the ratchet wheel on the rotary seat. When the adjusting ring is disposed in a first-direction position or a second-direction position, two of the pawls engage the ratchet wheel so as to allow for rotation of the ratchet wheel on the rotary seat in only a corresponding direction.

Abstract: A operating device for a screwdriver includes a body partially secured in a handle of the screwdriver, a barrel partially and pivotally received in the body and a controller pivotally mounted on the body for controlling an operated direction of the operating device.

Abstract: A screwdriver includes a handle having a polygonal hole defined in a first end thereof for allowing an operate shaft extending into the handle. A locking device is mounted in the handle for selective holding the operate shaft in place. A controlling device is mounted to the handle and corresponds to the locking device for forward moving the slider and making the locking device disengaged from the operate shaft for adjusting the total length of the screwdriver.

Abstract: A screwdriver includes a handle having a polygonal hole defined in a first end thereof for allowing an operate shaft extending into the handle. A locking device is mounted in the handle for selective holding the operate shaft in place. A controlling device is mounted to the handle and corresponds to the locking device for forward moving the slider and making the locking device disengaged from the operate shaft for adjusting the total length of the screwdriver.

Abstract: A operating device for a screwdriver includes a body partially secured in a handle of the screwdriver, a barrel partially and pivotally received in the body and a controller pivotally mounted on the body for controlling an operated direction of the operating device.

Abstract: A ratchet device for a screwdriver includes a body partially secured in a handle of the screwdriver, a barrel partially and pivotally received in the body and a controller pivotally mounted on the body for controlling an operated direction of the ratchet device.

Abstract: A ratchet mechanism of rotating tool including a hollow sleeve fitted in a seat body. A toothed disc is fitted on the sleeve and two movable blocks are respectively fitted with two ends of the sleeve. The movable blocks have toothed sections and are pushed by resilient members to engage with ratchet faces of the toothed disc. A hoop is rotably fitted around the toothed disc. The movable blocks abut against two end faces of the hoop. Each of the end faces has a slope face and each movable block has a projecting block corresponding thereto. When the hoop is rotated, the slope face pushes the projecting block so as to move the movable blocks, whereby the toothed sections of the movable blocks are disengaged from the ratchet faces of the toothed disc or engaged therewith.

Abstract: A ratchet wrench including a main body, a ratchet, a switching unit and two stopper members. The stopper members are slidable within the recesses of the main body to abut against the ratchet so that the ratchet can be only one-way rotated. The ratchet wrench is applicable to the ratchet with teeth projecting from outer side thereof. The stopper members are supported by the main body and the guide block and firmly located. Therefore, the ratchet wrench is able to bear greater working torque and achieve better using effect.

Abstract: A ratchet driving mechanism including a main body, an adjusting ring and a coupling member. The main body is formed with a rotary seat with two retractably outward extending detents. The detents can extend into an adjusting groove of the adjusting ring and engage with teeth of toothed inner circumference of a hoop section of the coupling member. By means of the adjusting ring, the operation direction of the detents can be adjusted. The detents have greater strength and applicable to those situations necessitating greater torque.

Abstract: A screwdriver is disclosed. It includes a grip, a connecting stem, a receiving member, a transmission shaft and a rotary wheel. In general using state, a user can quickly tighten a screw. In the case that a great torque is necessary, the grip of the screwdriver is depressed to connect the connecting stem with the transmission shaft so as to obtain greater torque. When depressing the grip, the using state will be affected and the screwdriver can be used conveniently. The sleeves can be received in the chambers of the grip, while the screwdriver heads can be received in the receptacles of the receiving member. The cap member and stopper member are both transparent, permitting the user to observe the positions of the respective tools. Therefore, the user can easily quickly locate the necessary tools. Moreover, the tools are safely stored without possibility of missing.

Abstract: A rotating tool is disclosed. It includes a main body, a rotating wheel and a transmission shaft. A diaphragm is formed in the main body for fixing the rotating wheel. The rotating wheel cooperates with idlersand gears for increasing rotating speed. Two bevel gears serve to change the operation direction. Therefore, an operator can depress a grip with one hand and rotate a handle with the other hand to enhance convenience in use and increase the speed of operation.

Abstract: A torque-controlling ratchet connector structure including a main body, a torque mechanism exerting a torque onto a screwdriver bit for rotating the same, a pressure adjustment mechanism for adjusting the torque, a first and a second ratchet wheels selectively clockwise or counterclockwise rotatable and a connector adapted to connect with various screwdriver bits. The torque mechanism includes a toothed disk rotatable along with the main body. By means of the pressing of a pressing plate and a spring of the pressure adjustment mechanism, the first and second ratchet wheels and a washer are forced, making steel balls exert pressure onto the toothed disk so as to rotarily drive a rotary shaft fitted in the hexagonal holes of the ratchet wheels and the washer. The rotary shaft in turn rotates the connector to drive the screwdriver bit.