Abstract: A strut includes a tube and a telescopic device. The tube includes a cavity. The telescopic device includes an anti-skid cap, a rod and an elastic element. The anti-skid cap is formed with an aperture and located on the tube to close the cavity so that the aperture is in communication with the cavity of the tube. The rod is movably inserted in the anti-skid cap and the cavity of the tube. The elastic element biases a section of the rod from the anti-skid cap via the aperture.

Abstract: A clamping apparatus includes a handle, two claws, a joint and a spring. The handle is pivotally connected to a portion of the joint. The claws are pivotally connected to another portion of the joint. The spring is located between the claws so that the spring biases the claws from each other.

Abstract: A tool for driving a threaded rod includes a shell, multiple balls and a cover. The shell includes a ring and a stepped aperture. The ring is formed on an internal face of the shell. The stepped aperture includes a first section on a side of the ring, a second section in the ring, and a third section on an opposite side of the ring. The multiple balls are inserted in the third section of the stepped aperture. The cover includes tube inserted in the first section of the stepped aperture through the second and third sections of the stepped aperture so that the cover retains the balls in the shell.

Abstract: A strut includes a tube and a telescopic device. The tube includes a cavity. The telescopic device includes an anti-skid cap, a rod and an elastic element. The anti-skid cap is formed with an aperture and located on the tube to close the cavity so that the aperture is in communication with the cavity of the tube. The rod is movably inserted in the anti-skid cap and the cavity of the tube. The elastic element biases a section of the rod from the anti-skid cap via the aperture.

Abstract: An eyelet machine includes a frame, a lower mold, a threaded rod, an upper mold and a bearing assembly. The frame includes a lower beam, an upper beam, and a post formed between the lower and upper beams. The lower mold is adapted for carrying a first washer of an eyelet and supported on the lower beam in a detachable manner. The threaded rod is connected to the upper beam so that the threaded rod is translatable relative to the upper beam when they are rotated relative to each other. The upper mold is adapted for carrying a second washer of the eyelet and connected to the threaded rod in a detachable manner so that they are translatable together. The bearing assembly is provided between the threaded rod and the upper mold and adapted for taking a load along an axis of the threaded rod.

Abstract: A socket assembly includes a socket, a lining and an annular magnet. The socket includes a hexagonal bore, six internal facets around the hexagonal bore, and two apertures in communication with the hexagonal bore. The lining includes a hexagonal block, two strips extending from the hexagonal block, and two bosses each formed on a corresponding one of the strips. The hexagonal block is inserted in the hexagonal bore, and includes a cavity, six external facets in contact with the internal facets of the socket, and six ridges each formed between two adjacent ones of the external facets. The annular magnet is inserted in the cavity. Each of the bosses is inserted in a corresponding one of the apertures. The annular magnet is squeezed tighter by the lining since the ridges are pressed tighter against an internal face of the socket as the lining is inserted deeper in the hexagonal bore.

Abstract: A scratch-proof pair of pliers includes two operative units and a protective cap. The first operative unit includes a first catch formed near an end. The first catch is adapted for engagement with a portion of a weight. The second operative unit includes a second catch formed near an end. The second catch is adapted for engagement with another portion of the weight. The protective cap includes a first end, a second end, a lower portion formed between the first and second ends, and an entrance made in the second end. The protective cap further includes an opening with a portion made in the first end and another portion made in the lower portion. The protective cap is provided on the end of the first operative unit while the catch of the first operative unit is exposed via the opening.

Abstract: A cleaning apparatus includes a supporting element, at least one button unit and a cleaning unit. The supporting element includes a space. The button unit is formed on the supporting element by making a U-shaped slit in the supporting element. The U-shaped slit is in communication with the space. The cleaning unit includes a shell, bristle and at least one hook. The shell includes a first end and a second end. The bristle is connected to an internal side of the shell via the first end. The hook extends from the second end of the shell. The hook is inserted in the space of the supporting element and the U-shaped slit of the button unit to engage the cleaning unit with the supporting element. The button unit is operable to move the hook out of the U-shaped slit to allow disengagement of the cleaning unit from the supporting element.