Abstract: A wrench includes a body, a first driving head, a second driving head, a first ratcheting mechanism and a second ratcheting mechanism. The first ratcheting mechanism connects the first driving head to the body. The second ratcheting mechanism connects the second driving head to the body.

Abstract: A ratchet flare nut wrench is disclosed. The ratchet flare nut wrench includes a handle, a socket, and a ratchet. The handle includes at least one open end. The socket includes a through hole therein, wherein the through hole has different sizes on opposite sides of the socket. The ratchet connects the socket to the open end of the handle.

Abstract: An anti-slip wrench includes a handle having two opposite grip surfaces, and at least one slant slot formed on at least one of the grip surfaces of the handle. The slant slot is through the grip surface from one lateral surface of the handle to the other. The slant slot is a concave surface with two side edges, which meet the grip surface respectively. The slant slot inclines at an included angle, which is defined between a slot axis of the slant slot and a longitudinal direction of the handle. The user contacts the concave surface of the slant slot, in which the thumb to fit, so as to manipulate the handle, as the slant slot on the handle is provided with preventing the thumb sliding longitudinally and transversely therefrom.

Abstract: A hand tool includes a handle, a first shank portion, a second shank portion, a hinge, a fitting and a ratchet. The first shank portion is connected to the handle. The hinge pivotally connects the second shank portion to the first shank portion. The ratchet connects the fitting to the second shank portion.

Abstract: A wrench includes a hollow handle, a driver, a battery base, an alert device, a switch and a force applying device. The driver includes a drive shaft and a drive head. The drive shaft is received in the hollow handle and pivotally connected to the inner wall of the hollow handle. The drive head is connected to the drive shaft and protrudes from the hollow handle. The switch electrically connects the battery base and the alert device. The switch includes a first contact and a second contact. The first contact is located on the drive shaft. The second contact is located on the inner wall of the hollow handle. The force applying device applies a predetermined force to the drive shaft to separate the first contact and the second contact.

Abstract: The present invention provides a threaded member with antirust effect. An oil reservoir is formed inside the threaded member and multiple conduits are formed on an outer circumference of the stem body of the threaded member in communication with the oil reservoir. An absorption material is installed in the oil reservoir and soaked with an antirust liquid. The antirust liquid in the oil reservoir can slowly seep out of the conduits to the outer circumference of the stem body so as to protect the threaded member from rust.

Abstract: A torque wrench includes a wrench body, a torque sensor, an angle sensor, a gravity sensor and a processor. The wrench body can provide a torque to a workpiece. The torque sensor can sense whether the torque is greater than a predetermined torque value. The angle sensor can obtain a rotational angle value by measuring the rotation of the wrench body after the torque is greater than the predetermined torque value. The gravity sensor can sense the tilt angle of the wrench body. The processor is programmed to correct the rotational angle value according to the tilt angle of the wrench body.

Abstract: A wrench with a rotatable head comprises a handle and a head, which are connected via a first and a second ends. The first end includes an upper and a lower lugs. A first toothed hole is formed in the upper lug; a hole is formed in the lower lug. A second toothed hole is formed in the second end. The second end is inserted between the upper and lower lugs and the second toothed hole is located between the first toothed hole and the hole. A toothed pillar is movably engaged in the toothed holes. When in the engagement position, the toothed pillar is engaged with the first and second toothed holes to fix the head and the handle. When in the disengagement position, the toothed pillar is disengaged from the teeth of the first toothed hole but still engaged with the teeth of the second toothed hole, so that the head and handle are rotatable with respect to each other.

Abstract: An apparatus for measuring the slip resistance of a wretch includes a base, at least one first threaded fastener, and at least one second threaded fastener. Both the first threaded fastener and the second threaded fastener are threaded into the base, wherein the roundness of the first threaded fastener and the roundness of the second threaded fastener are different.

Abstract: A double-fulcrum torque wrench including a tubular body, a head section for fitting with a socket or a screwing member and a flexible mechanism including a flexible section. The flexible mechanism is connected with a rear end of the head section and disposed in the tubular body. The head section protrudes from a front end of the tubular body. When a wrenching force is applied to the wrench, the flexible section of the flexible mechanism is flexible. The head section and the flexible mechanism are connected with the tubular body via two fulcrums and the flexible section is positioned between the two fulcrums. By means of the double-fulcrum design, the action force at the force application end of the wrench is equal to the action force at the resistance end. In addition, the flexure of the wrench and the actual wrenching torque applied to the wrench can be more accurately and sensitively measured.

Abstract: The present invention discloses a contractible wrench structure including a handle and a rod body, and the handle includes a containing space for accommodating the rod body, and a resilient element is installed in the containing space for abutting the rod body, and the handle includes a fixing element penetrated through a side wall of the handle, and the rod body includes a groove for allowing a peg of the fixing element to slide, and the groove is composed of a slide section, a first guide section, a second guide section, a first position limiting slot, and a second position limiting slot. With the guide of the groove, an extending or contracting status of the rod body can be adjusted.

Abstract: A socket connection device including a main body; a slide rod installed in the main body and slidable along the main body, a shallow depression and a deep depression being formed on a front end of the slide rod; and a ball body inlaid in a through hole of the main body. In normal state, a bottom edge of the ball body falls on the shallow depression and a top edge of the ball body protrudes out of the main body. When the slide rod moves to a position where the deep depression is aligned with the through hole, the ball body moves into the deep depression without protruding out of the main body. In the invention, a center of the ball body is positioned outside a bottom wall of the shallow depression. When fitting a socket on the connection device, the socket presses the ball body to drive the slide rod slide, whereby the ball body drops into the deep depression. Therefore, the socket can be directly connected with the device without performing any additional operation.

Abstract: The present invention provides a wrenching tool having a polygonal fitting hole formed of a first equilateral polygonal hole and a second equilateral polygonal hole with the same configuration. The two polygonal holes are concentrically arranged to provide two fitting positions for fitting to threaded members. The first polygonal hole has multiple first internal angles each having two sides. A first small internal angle is further disposed on one side of each first internal angle of at least the first polygonal hole. The first small internal angles provide another fitting position for fitting to another size of threaded member. Accordingly, the wrenching tool is applicable to various sizes of threaded members.

Abstract: The present invention provides a buoyant hand tool including a handle formed with an internal air chamber and a shank having an insertion end inserted in the handle. The buoyant hand tool further includes a sleeve disposed in the air chamber of the handle. The insertion end of the shank is extended into the air chamber and inserted in the sleeve. Accordingly, the connection strength between the handle and the shank is increased to enhance operation torque of the hand tool.

Abstract: A tool box includes a body with drawers and the body is rotatably connected to a base. A brake unit is received in the base and includes a first board fixed to the base and a second board movably located on the first board by connection plates pivotably connected between the first and second boards. A brake disk is rotatably located on the first board and the shaft is securely connected to the brake disk so that the brake disk is co-rotated with the body. The second board is controlled to move and contact the brake disk on the first board by a clutch pedal. When the second board contacts the brake disk, the body together with the base is moved as one piece, and when the second board is disengaged from the brake disk, the body can be rotated independently relative to the base.

Abstract: The invention provides an electronic torque meter for measuring torque of a wrench. The torque meter includes a housing in which an operation shaft and a flexible beam are disposed. When the operation shaft is rotated, the flexible beam is flexed. A measuring element is mounted on the flexible beam for detecting and measuring flexure of the flexible beam. An electronic display unit is mounted on the housing and electrically connected with the measuring element. When measuring the torque of a wrench, the measuring element directly measures the flexure and deformation of the flexible beam to obtain precise torque value. The torque value is displayed by the display unit in the form of numerals for easy reading.

Abstract: A hand tool with the function of automatic engaging is disclosed. It has a holding part with a driving head at an appropriate position thereon. The driving head has sleeve parts stacked in layers. The driving head has a sleeve hole for a working object to be automatically embedded therein and engaged with a corresponding sleeve part. The invention enables the user to determine the actual size of the working object for future maintenance.

Abstract: A tool box includes a body with drawers and the body is rotatably connected to a base. A brake unit is received in the base and includes a first board fixed to the base and a second board movably located on the first board by connection plates pivotably connected between the first and second boards. A brake disk is rotatably located on the first board and the shaft is securely connected to the brake disk so that the brake disk is co-rotated with the body. The second board is controlled to move and contact the brake disk on the first board by a clutch pedal. When the second board contacts the brake disk, the body together with the base is moved as one piece, and when the second board is disengaged from the brake disk, the body can be rotated independently relative to the base.

Abstract: A torque adjusting structure for power tools includes an accommodating device and a torque device. The accommodating device has a head part and a body part. The head part is formed with a groove for the connection of a power tool. The bottom of the groove is provided with a power base on which power connecting points for electrical connection of the power tool are provided. It provides the required electrical power for the power tool to start. The torque device has an acting part and an adjusting part. The torque device connects to the body part of the accommodating device using one end of the acting part. The other end of the acting part connects to the adjusting part.

Abstract: The present invention provides a threaded member with antirust effect. An oil reservoir is formed inside the threaded member and multiple conduits are formed on an outer circumference of the stem body of the threaded member in communication with the oil reservoir. An absorption material is installed in the oil reservoir and soaked with an antirust liquid. The antirust liquid in the oil reservoir can slowly seep out of the conduits to the outer circumference of the stem body so as to protect the threaded member from rust.