A work tool and transmission system thereof. The transmission system comprises: a first shaft (250) and a second shaft (350), a near end (351) of the second shaft having a first mating part; a shaft coupler (600), a far-side part (620) of the shaft coupler having a second mating part matched in shape to the first mating part; and a coupling mechanism capable of directly or indirectly applying a coupling force to at least one of the first shaft, the second shaft and the shaft coupler; when the far-side part of the shaft coupler is aligned with the near end of the second shaft in the circumferential direction, the coupling force forces the first mating part to engage with the second mating part, so that the shaft coupler transmits rotational movement of the first shaft to the second shaft. The work tool comprises: a transmission system; a motive power head transmission-connected to the first shaft (250); and a working head transmission-connected to the second shaft (350).

A rotating power tool assembly includes a rotating power base and a modular drive head. The rotating power base may be configured to rotate a spindle, and the modular drive head may be configured to be detachably coupled to the rotating power base. The modular drive head may comprise a torque control clutch, a working tip, and a torque value indicia. The torque control clutch may be non-adjustably structured to implement a torque limiting slip event that prevents the working tip from further rotation, despite continued rotation of the spindle, in response to the working tip being subjected to torque in excess of a discrete torque value. The torque value indicia may be externally visible and may comprise a visible characteristic that correlates to the discrete torque value.

A rotating power tool assembly includes a rotating power base and a modular drive head. The rotating power base may be configured to rotate a spindle, and the modular drive head may be configured to be detachably coupled to the rotating power base. The modular drive head may comprise a torque control clutch, a working tip, and a torque value indicia. The torque control clutch may be non-adjustably structured to implement a torque limiting slip event that prevents the working tip from further rotation, despite continued rotation of the spindle, in response to the working tip being subjected to torque in excess of a discrete torque value. The torque value indicia may be externally visible and may comprise a visible characteristic that correlates to the discrete torque value.

In a tool attachment having an attachment housing on which a fastening interface is situated for fastening to an handheld machine tool, the fastening interface having an angular position setting unit for setting a specified angular position of the tool attachment on the handheld machine tool, and being equipped with a locking unit which, in a locked state, locks the tool attachment for operation on the handheld machine tool in the specified angular position, and, in the unlocked state, makes possible drawing the tool attachment away from the handheld machine tool, the angular position setting unit is operable in the locked state of the locking unit, to enable a change in the specified angular position.

In a tool attachment having an attachment housing on which a fastening interface is situated for fastening to an handheld machine tool, the fastening interface having an angular position setting unit for setting a specified angular position of the tool attachment on the handheld machine tool, and being equipped with a locking unit which, in a locked state, locks the tool attachment for operation on the handheld machine tool in the specified angular position, and, in the unlocked state, makes possible drawing the tool attachment away from the handheld machine tool, the angular position setting unit is operable in the locked state of the locking unit, to enable a change in the specified angular position.

An angled adapter for coupling a tool bit to a tool includes a housing and a transmission assembly positioned in the housing. The transmission assembly is configured to convert an input torque about a first axis from the tool to an output torque about a second axis acting on the tool bit. The second axis is disposed at an angle relative to the first axis. The angled adapter also includes a shank supported by the housing and including a tool coupling portion configured to couple to the tool. The tool coupling portion has an outer dimension. The shank also includes a transmission coupling portion coupled to the transmission assembly, and an intermediate portion extending between the tool coupling portion and the transmission coupling portion. The intermediate portion has a diameter that is less than the outer dimension.

An angled adapter for coupling a tool bit to a tool includes a housing and a transmission assembly positioned in the housing. The transmission assembly is configured to convert an input torque about a first axis from the tool to an output torque about a second axis acting on the tool bit. The second axis is disposed at an angle relative to the first axis. The angled adapter also includes a shank supported by the housing and including a tool coupling portion configured to couple to the tool. The tool coupling portion has an outer dimension. The shank also includes a transmission coupling portion coupled to the transmission assembly, and an intermediate portion extending between the tool coupling portion and the transmission coupling portion. The intermediate portion has a diameter that is less than the outer dimension.

Disclosed is an instrument assembly for performing a procedure. The instrument assembly may include a powered motor for moving, such as rotating, a tool tip. The instrument assembly may include a transmission or a gear assembly to provide varying speed and/or torque to the tool tip.

Disclosed is an instrument assembly for performing a procedure. The instrument assembly may include a powered motor for moving, such as rotating, a tool tip. The instrument assembly may include a transmission or a gear assembly to provide varying speed and/or torque to the tool tip.

The present invention refers to a device for the discharge of a pressurised liquid comprising: a liquid intake section (2400), a liquid discharge lance (2300), a pump (2200), which can be connected to a motor (2100), the pump having an inlet connected to the intake section and an outlet connected to the discharge lance, where the discharge lance and the pump are connected by a connection (2800, 2801, 2802, 2803, 2804), with at most three rotational degrees of freedom and/or one translational degree of freedom.