Abstract: A ratchet screwdriver with improved rotation efficiency includes: a grip; a driving assembly installed to a first assembly portion of the grip; a ring seat assembly installed to a second assembly portion and having a multiple of extension arms and a ring seat; a planetary gear set installed to a gear assembly portion of the ring seat; a rotary head installed to an end of the driving assembly and having a screwdriver assembly portion passing through a through-opening of the ring seat; a ring sleeve sheathed on an end of the driving assembly and having a ring-shaped gear installed to an inner side of the ring sleeve. Each extension arm can increase the arm of force of the ring seat assembly when linked and improve the rotation efficiency.

Abstract: A pipe clamp includes a first clamp body, a second clamp body, an engaging member, a linking engagement member, a driver, at least one stop portion and a moving stopper. The moving stopper is used to control the first and second clamp bodies into a locked or swingable status. In the locked status, the second clamp body swings to a swing angle to drive the driver to link and pivot the linking engagement member, so that the serrated portion of the linking engagement member and the gear rack of the engaging member are engaged with each other in a one-way limit manner, and the first and second clamp bodies can swing in one direction only. The pipe clamp has the advantages of clamping a pipe stably, saving efforts, and improving the convenience of use.

Abstract: A saw blade hand tool structure includes a handle, an internal insert plate installed in the handle, an assembly head installed at an end of the handle and having an accommodating space with an abutting slope, an elastic element installed between the assembly head and the handle, a tightening assembly formed by a plate, a spring, a displacing member and locking pins, and a saw blade. A recess is formed on the plate which is installed in the assembly head; the locking pin is secured with the internal insert plate; the spring is sheathed on the displacing member which passes into the through hole of the internal insert plate; the displacing member is abutted by the abutting slope of the assembly head; and the saw blade is inserted into the assembly head and positioned by an end of the displacing member to prevent the saw blade from falling out.

Abstract: A rotary impact assembly structure includes a rotary tool and a rotary impact assembly. The rotary tool is assembled with the rotary impact assembly so that the rotary impact assembly is driven by the rotary tool to rotate. The rotary impact assembly has a counterweight plate. The counterweight plate has a first surface and a second surface at two sides thereof. The first surface is provided with a socket portion having an insertion hole at a center thereof. The second surface is provided with a plug portion at a center thereof. The rotary impact assembly structure is able to increase the rotational inertia and the amount of torque to quickly loosen or tighten a fastener and has a simple and convenient operation.

Abstract: A pipe wrench structure with a secure positioning function includes a main body, an engaging portion including a pivot point, an upper jaw and a lower jaw for performing an opening/closing operation, a pipe being placed between the upper and lower jaws while clamping the pipe; an elastic restoring member, installed to the upper and lower jaws and configured to be corresponsive to the pivot point, and provided for providing a pressing force to the upper jaw; an auxiliary ratchet surface, disposed at the lower jaw; an arc ratchet surface, disposed on an inner side of the upper jaw opposite to the lower jaw, and being in form of concave arc surface without an included angle, and the curvature of the arc ratchet surface being greater than the external periphery of the pipe.

Abstract: A rotary impact assembly structure includes a rotary tool and a rotary impact assembly. The rotary tool is assembled with the rotary impact assembly so that the rotary impact assembly is driven by the rotary tool to rotate. The rotary impact assembly has a counterweight plate. The counterweight plate has a first surface and a second surface at two sides thereof. The first surface is provided with a socket portion having an insertion hole at a center thereof. The second surface is provided with a plug portion at a center thereof. The rotary impact assembly structure is able to increase the rotational inertia and the amount of torque to quickly loosen or tighten a fastener and has a simple and convenient operation.

Abstract: A wrench includes a body having a room defined therein. Two heads are respectively formed on two ends of the body, and each head has an operation hole defined therethrough. Each of the operation holes communicates with the room. A positioning rod is movably received in the room and has an outer threaded portion and a rotary member is rotatably and threadedly mounted to the outer threaded portion of the positioning rod. The rotary member is rotated to move the positioning rod into either one of the operation holes to position an object in the operation hole.

Abstract: An opener for opening easy-open cans includes a handle having an extension extending from the first end thereof, and a bottle opening portion formed on the second of the handle. The extension has a lug extending from each of two sides thereof. Each lug has a slot defined therethrough. A plate includes a pivotal portion formed on the first end thereof, and an insertion on the second end thereof. The pivotal portion is pivotably connected between the two lugs. The plate has a protrusion extending from each of two sides of the first end thereof so as to be engaged with the slots of the two lugs when the plate is pivoted toward the handle. The insertion is inserted into the gap between the ring and the top of the can to easily pull the ring-pull.

Abstract: An angle adjustable wrench includes a handle, a main part, an adjustment unit and a jaw unit. The handle includes a head which has inner teeth defined in the inner periphery thereof. The head is installed in the main part. The adjustment unit includes a sleeve with an axial hole, two pawls, a resilient member and a button. The button includes a first neck and a second neck. The resilient member pushes the button, and the two pawls are pushed by the first neck and engaged with the inner teeth of the head. The jaw unit includes a movable jaw, a rotary wheel and a fixed jaw. The rotary wheel is threadedly mounted to the shaft. The main part together with the jaw unit are pivoted an angle relative to the handle by pushing the button.

Abstract: An anti-theft display rack includes a display rack having multiple positioning members to which sockets are mounted. The display rack has a head and a tail respectively on two ends thereof. The head has a first engaging portion on the first end thereof, and a hanging hole defined through the second end of the head. An elongate cover has a flange extending therefrom which defines a room surrounded by the flange. The sockets are received in the room. The cover has a pivotal portion and a second engaging portion on two ends thereof. The pivotal portion is pivotably connected to the tail. The second engaging portion is detachably connected to the first engaging portion and the cover is mounted to the sockets by the flange in the room.

Abstract: A ratchet wrench includes a center gear connected to the top of the ratchet wheel and a disk is mounted to the center gear. Three planet gears is connected to the disk and engaged with the center gear. A rotary member is rotatably mounted to the disk and has inner teeth engaged with the planet gears. Two pawls are respectively engaged with the disk and the ratchet wheel. A shank extends through the rotary member, the disk, the center gear and is connected to the ratchet wheel. When rotating the rotary member, the planet gears rotate the center at high speed, and the center gear rotates the ratchet wheel to quickly rotate the object to be tightened or loosened.

Abstract: A wrench includes a head which has a first room and a second room defined therein. The first room communicates with the second room. Two holes are defined through the bottom of the head and respectively communicates with the first and second rooms. A first driving gear and a second driving gear are respectively located in the first room and the second room, and are engaged with each other. Each of the first driving gear and the second driving gear has an operation portion and a protrusion extending from two ends thereof. The user uses another wrench to drive the operation portion of the first gear which drives the operation portion of the second driving gear to tighten or loosen the object connected to the operation portion of the second gear.

Abstract: A ratchet wrench includes a head with a ratchet wheel rotatably received therein. A positioning unit is located in the head and is cooperated with a pawl which is engaged with the ratchet wheel. A collar is located in the head and has two notches defined in a peripheral wall of the collar. A curved groove is defined through the collar. Two toothed racks are formed along the groove. Two clamp members are located in the ratchet wheel which has two guide slots. Each clamp member has two guide rods which are located in the guide slot corresponding thereto. An engaging unit extends through the groove and is pivotably connected to a lever to securely position the clamp members when clamping an object. The two clamp members are adjusted to securely clamp the object by rotating the collar, and the object can be rotated by the ratchet wrench.

Abstract: A ratchet wrench includes a center gear connected to the top of the ratchet wheel and a disk is mounted to the center gear. Three planet gears is connected to the disk and engaged with the center gear. A rotary member is rotatably mounted to the disk and has inner teeth engaged with the planet gears. Two pawls are respectively engaged with the disk and the ratchet wheel. A shank extends through the rotary member, the disk, the center gear and is connected to the ratchet wheel. When rotating the rotary member, the planet gears rotate the center at high speed, and the center gear rotates the ratchet wheel to quickly rotate the object to be tightened or loosened.

Abstract: An adjustable wrench includes a handle having a first toothed portion and a first recess. A head has a fixed jaw and a second hole. A space is defined in the head and the first tooted portion of the handle is inserted into the space. A second recess is defined in one of sidewalls of the space. A pin extends through the second hole and the first hole to pivotably connect the head to the handle. A movable jaw has a slide inserted into a slot in the second side of the head. A resilient member is mounted to the pin and has two legs which are respectively located in the first and second recesses. The movable jaw has a second toothed portion which is engaged with the first toothed portion. The movable jaw is quickly moved relative to the fixed jaw by the resilient member.

Abstract: A ratchet wrench includes a head with a ratchet wheel rotatably received therein. A positioning unit is located in the head and is cooperated with a pawl which is engaged with the ratchet wheel. A collar is located in the head and has two notches defined in a peripheral wall of the collar. A curved groove is defined through the collar. Two toothed racks are formed along the groove. Two clamp members are located in the ratchet wheel which has two guide slots. Each clamp member has two guide rods which are located in the guide slot corresponding thereto. An engaging unit extends through the groove and is pivotably connected to a lever to securely position the clamp members when clamping an object. The two clamp members are adjusted to securely clamp the object by rotating the collar, and the object can he rotated by the ratchet wrench.

Abstract: A C-clip tool includes a first part and a second part. A first arm and a second arm are connected between the first and second parts. The second part has a reception hole and a rod is located at the mediate portion of the reception hole. Two enlarged holes are located on two ends of the reception hole and communicate with the reception hole. A resilient plate is located in the reception hole and two pillars are connected to the resilient plate. A push member has a block which optionally contacts one of the two pillars. Two operation members are respectively connected to the first and second arms. The operation members are replaceable to operate on different sizes of C-clips.

Abstract: An adjustable ratchet wrench includes a head with a handle. The head has a space defined therein. A first pawl is located in the head and has a first engaging portion which protrudes through a recess in the inside of the space. A hollow slide is movably located in the space and has a passage defined axially therethrough. An index member extends from the top side of the slide. A second pawl is located in the first end of the slide and has a second engaging portion facing the space. A threaded rod extends through the passage of the slide and outer threads. The slide has an insertion member inserted therein and the insertion member has an engaging part which is engaged with the outer threads. By rotating the threaded rod, the slide with the second pawl move into the space to clamp objects of different sizes.

Abstract: A hand tool includes a handle and a head which has two extensions. A function unit is rotatably and pivotably connected between the two extensions. The function unit has a passage in the center thereof and multiple operation portions extend radially from the center of the function unit. Each operation portion has an operation hole. A first part and a second part are respectively mounted to two opposite sides of the function unit. A casing is securely coated to outside of the first and second parts. The operation holes are exposed in the periphery of the function unit so as to be connected with tool bits or objects.

Abstract: A spray head assembly includes a bottle having an opening defined in the top thereof, and a protrusion extends from an inner end of bottle. An installation hole is defined through the protrusion and an air valve is sealed in the installation hole. An end of the air valve communicates with outside of the bottle. A nozzle is engaged with the opening of the bottle and connected with a hose which is inserted into the bottle. A mount is mounted to the top of the bottle and the nozzle extends from a through hole of the mount. Air is introduced into the bottle via the air valve to atomize the liquid which can be sprayed from the nozzle.