A power tool includes a motor and an output assembly configured to receive torque from the motor. The output assembly includes an anvil having a cylindrical body portion, an output member configured to engage a socket, and a curvilinear transition portion that tapers between the body portion and the output member. The transition portion defines a radius in a plane containing a rotational axis of the anvil that is greater than 1.5 mm. The output assembly also includes a pawl that is moveable between a first position in which the pawl is operatively coupled to drive the anvil in a first direction and a second position in which the pawl is operatively coupled to drive the anvil in a second direction opposite the first direction.

A tool housing for a tool, such as a motorized ratcheting-type tool. The tool housing includes a ratchet housing portion, a first housing portion pivotably coupled to the ratchet housing portion, a second housing portion having first and second opposing ends, and a motor housing portion coupled to the second end of the second housing portion. The first end of the second housing portion is threadably coupled to the first housing portion.

A wrench structure with a variable driving state includes a rod and a sleeve connected to the rod. An outer surface of the rod includes an accommodating slot, an engaging block, an elastic element, and a connecting portion. The engaging block and the elastic element are disposed in the accommodating slot. The connecting portion is adjacent to the accommodating slot and surrounds the outer surface of the rod. The sleeve includes a first ratchet portion, a second ratchet portion, and a non-ratchet portion located between the two ratchet portions. The sleeve can be selectively displaced relative to the rod to a first position, where the connecting portion is connected with the second ratchet portion, or a second position, where the connecting portion is adjacent to the non-ratchet portion. By controlling the relative positions of the rod and the sleeve, the driving state of the wrench structure can be switched.

A socket wrench with a reversible structure includes a rod, a sleeve, a first ratchet block and a second ratchet block. The rod has a columnar surface, and includes a first slot and a second slot. The first slot and the second slot are disposed on different positions along an axis direction of the rod. The sleeve is slidably sleeved on the rod, and includes an accommodating end and a driving end. The accommodating end includes a toothed segment which is protruded radially inward from an inner wall of the accommodating end. The first ratchet block is movably disposed in the first slot and includes a first ratchet portion. The second ratchet block is movably disposed in the second slot and includes a second ratchet portion. The toothed segment of the sleeve is selectively engaged with one of the first ratchet block and the second ratchet block.

A palm tool device includes a drive tool and a bar. The drive tool includes a drive member and a grip member connecting with and housing the drive member. The grip member is annular and surrounds the drive member. An outer periphery of the grip member forms a grip portion and a first attach portion. The bar is selectively attached to and detached from the drive tool. The bar is attachable in at least one position to the drive tool. The bar has a second attach portion and a third attach portion. The bar is attachable in a first position to the drive tool by connecting the second attach portion with the first attach portion. The bar is attachable in a second position to the drive tool by connecting the third attach portion with the engage portion.

A ratchet wrench is provided, including a main body, a driving member, a ratchet assembly and a switch button. The main body has a receiving chamber, and a circumferential wall of the receiving chamber has an interior circumferential toothed portion. The driving member is disposed within the receiving chamber and rotatable about an axial direction. The ratchet assembly includes a first ratchet member and a second ratchet member which are swingably arranged in the driving member. The switch button is pivoted to the driving member, extends along a direction lateral to the axial direction and is swingable to be on a first position and a second position.

A ratchet wrench comprises a handle defining a cavity including a plurality of teeth on an inner periphery thereof, a wheel, a biasing spring ring, and at least one tooth pawl mounted in recesses formed on the outer periphery of the wheel. The wheel is rotatably mounted inside the cavity and the pawls are biased by the spring ring to engage the plurality of teeth on the inner periphery of the cavity when rotated in a first direction, and to slide over the teeth engage the plurality of teeth on the inner periphery of the cavity when rotated in a direction opposite the first direction.

A wrench includes a driving unit located in the head of the wrench. A rod extends through the driving member and includes a stepped recess so as to control a bead in the radial hole of the driving member to secure a socket connected to the driving member. A rotary member is connected to the head and includes a room. A locking member is located in the room and locked to the driving member. A fixing area is formed between the locking member and the driving member so as to fix the locking member and the driving member together. The fixing area ensures that locking member is not separated from the driving member.

The invention provides, in another aspect, an impact tool comprising a housing, a motor having an output shaft defining a first axis, a drive shaft rotatably supported by the housing about a second axis oriented substantially normal to the first axis, a gear coupled for co-rotation with the drive shaft, an impact mechanism coupled between the motor and the drive shaft and operable to impart a striking rotational force to the drive shaft, the impact mechanism including, an anvil rotatably supported by the housing and coupled to the drive shaft, the anvil including a pinion engaged with the drive shaft gear, a hammer coupled to the motor to receive torque from the motor and impart the striking rotational force to the anvil, and a spring washer exerting a preload force on the pinion to maintain the pinion meshed with the drive shaft gear.

According to one aspect, a fluid control system is provided comprising a servicing tool set and at least one valve assembly comprising an actuator and a valve operationally engageable therewith; each valve comprising a valve body; each actuator comprising an actuator body having an upper base and side walls; wherein each actuator body is engageable with a valve body, and wherein the system is configured to allow: engaging the servicing tool set with an actuator and subsequently applying torque to an actuator body engaged with a valve body and thereby disengaging the actuator body from the valve body; the at least one valve assembly comprising at least one Normally Closed (NC) valve; wherein the NC valve is configured to allow activating an actuator engaged therewith with pressurized fluid and thereby opening the NC valve, wherein the actuator comprises a nipple and the servicing tool set comprises a ratchet and at least one socket engageable with the actuator body, and wherein the at least one socket is sized and shaped to accommodate the nipple, and wherein the servicing tool set is further configured to allow operationally coupling the pressurized fluid to the actuator.