A wrench includes a tool head, an outer tube unit, a rod unit and a sleeve unit. The outer tube unit includes an outer tube, a tail seat and a biasing member. The tail seat is detachably mounted to the outer tube. The rod unit includes an inner rod telescopically disposed in the outer tube and formed with a plurality of cavities. The biasing member biases the inner rod away from the tail seat. The sleeve unit is slidably sleeved on the outer tube and includes a positioning ball engageable with a selected one of the cavities to prevent the inner rod from moving relative to the outer tube and removable from the selected one of the cavities to allow the inner rod to move relative to the outer tube.

A bicycle tool according to the disclosure comprises a valve connection means. A tool element is connected with the valve connection means. The tool element is connected with the valve connection means in its longitudinal direction such that an elongated bicycle tool is formed.

A folding flex ratchet having a handle that is joined to a ratchet head by an offset hinge that allows the handle to be selectively folded between an extended position for applying greater torque and a folded position in which the ratchet operates in spaces where access is minimal, somewhat like a palm ratchet. The ratchet head may include a generally L-shaped neck that provides an offset handle connection point that is offset in two directions from the ratchet head, both rearwardly and longitudinally. The handle, ratchet head and offset hinge are configured so that, when in the folded position, the handle is approximately centered over the ratchet head and the handle extends substantially parallel to the ratchet head.

A ratchet wrench (1) has a flexible clutch ring (500) that forms the mid part of a laminate-like structure comprising a wrench head (200), the clutch ring (500) and a drive element (40). When under load, the compression forces applied to the clutch ring (500) are substantially dissipated around its circumference (508) and inner surface (509), this inward force clamping upon the inherently strong drive outer surface (45). The laminate-like construction enables a reduction in the width or depth of the wrench head without a loss in strength.

The present invention relates to a three-piece wrench comprising: a wrench body with a working head and a shaft, the working head is located at a front end of the shaft, the shaft has a length; a first extension rod with a length; and a second extension rod with a length; the lengths of the first extension rod and the second extension rod are greater than the length of the shaft; combination of the wrench body, the first extension rod and the second extension rod provides various usage lengths of the wrench, so that different connection types can be used to form required lengths according to requirements.

A ratchet wrench comprising a ratchet head with a cylindrical bore having a central axis; a handle; a drive member (26) with a rotation axis (W-W) retained within the cylindrical bore for rotation about the central axis; and a toothed ratchet pawl (42); a cylindrical array of straight ratchet teeth arranged about one of the cylindrical bore or the drive member; and a pawl recess (36) arranged to support the pawl. The pawl may mesh with the ratchet teeth for transmission of rotation of the handle in a first direction to the drive member about the rotation axis or disengage from the ratchet teeth to decouple rotation of the handle in a second direction from the drive member. Support (37a, 37b, 46, 48, 50) for the pawl in the recess is shaped to accommodate divergence between the central axis and the rotation axis.

A ratchet socket may include a main body, and an outer periphery of the main body has ratchet teeth formed in an endless circular pattern to form the main body with a polygonal cross section. The main body comprises a hexagonal inner periphery to form six internal angles and six inner edges. Each of the inner edges has an engaging portion at a middle portion thereof, and each of the inner edges comprises two abutting portions at two sides of the engaging portion between the engaging portion and each of two adjacent internal angles. Each of two recess portions is formed between the engaging portion and the abutting portion to form two engaging teeth on two lateral edges of the engaging portion. Each of the internal angles is curved to form an inclined surface between the abutting portion and the adjacent internal angle.

A folding flex ratchet having a handle that is joined to a ratchet head by an offset hinge that allows the handle to be selectively folded between an extended position for applying greater torque and a folded position in which the ratchet operates in spaces where access is minimal, somewhat like a palm ratchet. The ratchet head may include a generally L-shaped neck that provides an offset handle connection point that is offset in two directions from the ratchet head, both rearwardly and longitudinally. The handle, ratchet head and offset hinge are configured so that, when in the folded position, the handle is approximately centered over the ratchet head and the handle extends substantially parallel to the ratchet head.

A folding flex ratchet having a handle that is joined to a ratchet head by an offset hinge that allows the handle to be selectively folded between an extended position for applying greater torque and a folded position in which the ratchet operates in spaces where access is minimal, somewhat like a palm ratchet. The ratchet head may include a generally L-shaped neck that provides an offset handle connection point that is offset in two directions from the ratchet head, both rearwardly and longitudinally. The handle, ratchet head and offset hinge are configured so that, when in the folded position, the handle is approximately centered over the ratchet head and the handle extends substantially parallel to the ratchet head.

A ratchet wrench (1) has a flexible clutch ring (500) that forms the mid part of a laminate-like structure comprising a wrench head (200), the clutch ring (500) and a drive element (40). When under load, the compression forces applied to the clutch ring (500) are substantially dissipated around its circumference (508) and inner surface (509), this inward force clamping upon the inherently strong drive outer surface (45). The laminate-like construction enables a reduction in the width or depth of the wrench head without a loss in strength.