Abstract: A combination includes a ratchet wrench and a driving member. The ratchet wrench includes a body and a ratchet wheel mounted in the body and rotatable relative to the body about a rotational axis. A driving hole extends through from a side through the other side of the body along the rotational axis and includes an inner periphery having a plurality of abutment surfaces. A corner is formed between each two adjacent abutment surfaces. At least one limiting portion protrudes from the inner periphery of the driving hole in a radial direction perpendicular to the rotational axis. The driving member includes at least one evasive portion and is coupled to the driving hole. The driving member is movable between a first coupling position and a second coupling position along the rotational axis when the at least one evasive portion is aligned with the at least one limiting portion.

Abstract: An electric ratchet wrench includes a body and a driving member rotatably mounted in the body and is rotatable about an axis. A ring gear is rotatably mounted to and moveable relative to the driving member, and the ring gear is rotatable relative to the driving member about a center axis of the ring gear. A power device is received in the body. A transmission shaft is rotatably mounted to the body. The transmission shaft has a end connected to the power device, and another end configured to switch between a meshing state meshed with the ring gear and a disengagement state disengaging from the ring gear. An elastic device biases the ring gear causing the center axis of the ring gear being inclined relative to the axis in the disengagement state and being parallel with the axis in the meshing state.

Abstract: A quick detachable and adjustable magnetic seat for sleeve includes a magnetic device and a detachable positioning device. The magnetic device includes a first end and a second end. The first end is magnetic. The detachable positioning device includes a connecting end slidably disposed on the second end of the magnetic device, such that the magnetic device axially slides against the detachable positioning device. The detachable positioning device further includes a resilient quick detach device disposed on one end of the detachable positioning device away from the connecting end, whereby the detachable positioning device is removably disposed in a sleeve. Therefore, when the sleeve is damaged or broken, the adjustable magnetic seat is efficiently removed from the sleeve and re-installed in a new sleeve replacement.

Abstract: An electric ratchet wrench includes a driving member rotatably mounted in a body. A pawl device is pivotably mounted to the driving member. A ring gear is rotatably mounted around the driving member. An elastic device is mounted between the ring gear and the driving member. A transmission shaft includes a first end connected to a motor and a second end configured to switch between a meshing state meshed with the ring gear and a disengagement state disengaging from the ring gear. The motor drives the transmission shaft to rotate the driving member. The body can be manually driven to overcome a resistance which is larger than the torque outputted by the motor and which causes a tooth slippage phenomenon between the transmission shaft and the ring gear.

Abstract: A ratchet wrench includes a body having a head and a shank interconnected to the head. The head includes a driving hole extending along a first axis and receiving a driving device. The shank includes a transmission hole receiving a transmission shaft. An axis fixing device is mounted in a transmission groove between the driving hole and the transmission hole and includes an axial hole extending through the axis fixing device along a second axis that extends perpendicularly to and intersects with the first axis. A gear coupled to the driving device is received in the axial hole and is rotatable about the second axis. A driving end of the transmission shaft extends into the axial hole and is connected to the gear.

Abstract: A ratchet wrench includes a driving device. A compartment extends through the driving device. A drive member is received in the compartment. A ledge is formed on an inner periphery of an end of the compartment. A pressing rod extends into the drive member via the end of the compartment. The pressing rod is movable relative to the drive member along a rotating axis between a first position and a second position to control engagement with or detachment from a tool. A dustproof ring is mounted between the ledge and the pressing rod. The dustproof ring includes an outer side pressing against an abutment portion of the ledge and an inner side-pressing against the pressing rod wherever the pressing rod is in the first position and the second position.

Abstract: A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A tooth breakage preventing device is mounted in the arcuate portion and is configured to be in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the two first pawls when the body is rotated to provide a ratcheting function for driving the fastener.

Abstract: A quick detachable and adjustable magnetic seat for sleeve includes a magnetic device and a detachable positioning device. The magnetic device includes a first end and a second end. The first end is magnetic. The detachable positioning device includes a connecting end slidably disposed on the second end of the magnetic device, such that the magnetic device axially slides against the detachable positioning device. The detachable positioning device further includes a resilient quick detach device disposed on one end of the detachable positioning device away from the connecting end, whereby the detachable positioning device is removably disposed in a sleeve. Therefore, when the sleeve is damaged or broken, the adjustable magnetic seat is efficiently removed from the sleeve and re-installed in a new sleeve replacement.

Abstract: A combination of wrench and driving device includes a wrench, a first driver having an axis and a combining part on one end and a connecting part on the other end thereof, a second driver having a non-circular outer edge, and a retaining mechanism. The wrench has a driving part. The combining part is removably engaged with the driving part, and one end of the combining part away from the connecting part has a retaining edge. The second driver is axially coupled with the connecting part along the axis. The retaining mechanism, when the second driver rotates toward any vertical direction vertical around the axis to be coupled, prevents the profile of the combining part and the profile of the non-circular outer edge from completely axially overlapping each other. The non-circular outer edge is retained against the driving part of the wrench.

Abstract: An electric socket ratchet wrench includes a body, a driving device rotatably mounted in the body, a pawl device coupled with the driving device, a power device providing a torque, a transmission device between the driving device and the power device, and a clutch device. The driving device includes a driving member having a non-circular hole for coupling with a fastener. The driving member includes an annular toothed portion coupled with the pawl device and an end toothed portion coupled with the transmission device. When a resistance smaller than the torque is encountered while the driving member is driving the fastener, the driving member continuously drives the fastener. When a large resistance larger than the torque is encountered at a position, the body is manually rotatable by a torque larger than the large resistance to forcibly drive the fastener through the position via the driving member.

Abstract: A torque indication wrench includes a main body having a wrenching portion and a support portion, a torque rod having a first end and a second end, and an indication device disposed between the main body and the torque rod. The wrenching portion drives an object. The first end is connected with the support portion. The main body defines a longitudinal line dividing the torque into a counterclockwise and an opposite clockwise areas. A biasing section is formed between the first and second ends, with the central axis of the biasing section positioned in the counterclockwise area. The user wrenches the second end of the torque rod, such that the biasing section of the torque rod resiliently bends from the counterclockwise area toward the clockwise area, and the user is able to read an indicated torque value.

Abstract: An open end wrench includes a body having a jaw portion for holding a workpiece. The jaw portion includes an arcuate sliding groove, an expanding groove, and a slider movable relative to the arcuate sliding groove along an arcuate path. The jaw includes a first jaw having a force-applying face and an evasive portion adjacent to the force-applying face. When the jaw portion deforms elastically while wrenching the workpiece, the expanding groove increases the expanding effect within an elastic limit of the jaw portion, such that a corner between the force-receiving face in a first rotating direction and a sixth force-receiving face in a second rotating direction can move across the force-applying face into the evasive portion, avoiding damage to the slider and the first jaw resulting from failure in withstanding the reactive force from the workpiece. Thus, the open end wrench has high toughness and a long service life.

Abstract: A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A separate tooth breakage preventing device is mounted in the arcuate portion and includes a contact face in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the first pawls when the body is rotated to provide a ratcheting function for driving the fastener.

Abstract: An electric rapid ratchet wrench includes a driving device mounted in a body to which a power device is mounted. A transmission device is mounted between the driving device and the power device and is rotatably mounted to the body. The transmission device transmits a torque from the power device to drive the driving device. A clutch device is mounted between the driving device and the power device. The clutch device includes a driven member and a driver member movable in a radial direction perpendicular to a rotating axis to disengageably engage with the driven member. When a large resistance larger than the torque of the power device is encountered at a position while the driving device is driving a fastener, the driver member repeatedly engages with and disengages from the driven member. The body is manually rotatable to forcibly drive the fastener through the position via the driving device.

Abstract: A torque wrench includes a driving device having a connecting rod pivotably connected to a body. The connecting rod is pivotably connected to a head of the driving device and is pivotable between first and second positions. The torque wrench has first and second lever arms corresponding to the first and second positions, respectively. A torque device is mounted to the body and presses against an abutting end of the connecting rod. An adjusting device is movably mounted to the body and is operatively connected to the torque device for setting an initial torque value. A measuring unit measures the initial torque value. An operating unit multiplies the initial torque value by a first or second correction coefficient corresponding to the first or second lever arm to obtain a corrected torque value. A display unit displays the corrected torque value.

Abstract: A torque tool includes a body having a first end and a second end. A driving device includes a connecting portion and a driving portion. The connecting portion includes a pivotal end and an abutting end. The pivotal end is pivotably connected to the first end of the body. A torque device is mounted in the body, includes at least two elastic coefficients different from each other, and is disposed to be connected to the abutting end of the connecting portion. The torque device provides at least two torque ranges corresponding to the at least two elastic coefficients. An adjusting device is movably mounted to the second end of the body. The adjusting device is movable relative to the body to adjust a pressing force against the torque device to thereby set a torque value.

Abstract: A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A tooth breakage preventing device is mounted in the arcuate portion and is configured to be in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the first pawls when the body is rotated to provide a ratcheting function for driving the fastener.

Abstract: A ratchet wrench with tooth breakage resistance includes a body having a driving hole and a transmission hole intersecting with the driving hole. An inner periphery of the driving hole includes two adjoining portions on opposite sides of the transmission hole. An arcuate portion extends between the two adjoining portions. A separate tooth breakage preventing device is mounted in the arcuate portion and includes a contact face in contact with one of first and second outer toothed sections of either of two first pawls to prevent tooth breakage between a toothed portion of the driving hole and the one of the first and second outer toothed sections of either of the first pawls when the body is rotated to provide a ratcheting function for driving the fastener.

Abstract: An electric ratchet wrench includes a driving member rotatably mounted in a body. A pawl device is pivotably mounted to the driving member. A ring gear is rotatably mounted around the driving member. A flexible transmission shaft includes a first end connected to a motor and a second end configured to switch between a meshing state meshed with the ring gear and a disengagement state disengaging from the ring gear. The motor drives the transmission shaft to rotate the driving member. The body can be manually driven to overcome a resistance which is larger than the torque outputted by the motor and which causes a tooth slippage phenomenon between the transmission shaft and the ring gear.