Abstract: A blow molding toolbox has a casing, a cover, and multiple reinforcing elements. The casing has multiple connecting recesses, multiple guiding slots, and multiple positioning recesses. The connecting recesses are deposited on an external surface of the casing at corners of the casing. The cover is pivotally connected to the casing and has a same structure as the casing. Each one of the reinforcing elements is connected to the casing at one of the corners of the casing to cover a corresponding connecting recess of the casing or is connected to the cover at one of the corners of the cover to cover a corresponding connecting recess of the cover, and each reinforcing element has a body, at least one fixing tube, and at least one tapping screw. The reinforcing elements may increase the structural strength of the blow molding toolbox.

Abstract: A toolbox has a casing and a cover. The casing has a top mounting flange, a first strengthening frame, and at least one engaging ring. The top mounting flange is formed on the casing. The first strengthening frame is mounted around the top mounting flange. The at least one engaging ring is mounted on the casing and has multiple ring fasteners mounted through the engaging ring and the top mounting flange via the first strengthening frame. The cover is connected to the casing and has a bottom mounting flange, a second strengthening frame, at least one engaging protrusion. The bottom mounting flange is formed on the cover. The second strengthening frame is mounted around the bottom mounting flange. The at least one engaging protrusion is mounted on the cover and has multiple protrusion fasteners mounted through the engaging protrusion and the bottom mounting flange via the second strengthening frame.

Abstract: A file handle has a body, a ferrule, a clamping assembly, and a cap. The body has a first end and a second end opposite to the first end. The ferrule is assembled at the first assembling end of the body. The clamping assembly is movably mounted in the body and has two clamping portions and a threaded hole. The two clamping portions extend through the ferrule. The two clamping portions are subjected to an elastic force and oppositely separated from each other. The threaded hole is adjacent to the second assembling end of the body. The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole. Because the space between the two clamping portions can be adjusted by turning the cap, a user can clamp a tang of a file blade by the file handle.

Abstract: A file handle has a body, a ferrule, a clamping assembly, and a cap. The body has a first end and a second end opposite to the first end. The ferrule is assembled at the first assembling end of the body. The clamping assembly is movably mounted in the body and has two clamping portions and a threaded hole. The two clamping portions extend through the ferrule. The two clamping portions are subjected to an elastic force and oppositely separated from each other. The threaded hole is adjacent to the second assembling end of the body. The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole. Because the space between the two clamping portions can be adjusted by turning the cap, a user can clamp a tang of a file blade by the file handle.

Abstract: A toolbox with a stacking function has a body and at least two connecting elements. The body has four positioning segments, four locating segments, at least two mounting recesses and at least two holding recesses. The at least two mounting recesses are formed in two opposite sidewalls of the body adjacent to a bottom face of the body, and each one of the at least two mounting recesses has two pivot holes. The at least two holding recesses are formed in the opposite sidewalls of the body above the at least two mounting recesses, and each one of the at least two holding recesses has two engaging holes. The at least two connecting elements are detachably and pivotally connected to the body in the at least two mounting recesses, and each one of the at least two connecting elements has a connecting rod, a handle and two engaging protrusions.

Abstract: A combinational tool holder device has a holder base, a first combination holder and a second combination holder. An inner tube of the holder base has multiple longitudinal insertion holes longitudinally formed in the inner tube and multiple radial insertion troughs radially formed in the inner tube and respectively communicating with the longitudinal insertion holes. The first combination holder and the second combination holder are mounted around the holder base and both have tool insertion holes. The first combination holder clamps the holder base by two first holder claws, and the second combination holder clamps the holder base by two second holder claws. A first interval between the two second holder claws is larger than a second interval between the two first holder claws.

Abstract: A combinational tool holder device has a holder base, a first combination holder and a second combination holder. An inner tube of the holder base has multiple longitudinal insertion holes longitudinally formed in the inner tube and multiple radial insertion troughs radially formed in the inner tube and respectively communicating with the longitudinal insertion holes. The first combination holder and the second combination holder are mounted around the holder base and both have tool insertion holes. The first combination holder clamps the holder base by two first holder claws, and the second combination holder clamps the holder base by two second holder claws. A first interval between the two second holder claws is larger than a second interval between the two first holder claws.

Abstract: A multi-size adjustable sleeve has a sleeve body, a controlling unit, and a fixing unit. The sleeve body has a wheel slit formed through the sleeve body. The controlling unit is mounted in the sleeve space and has a wheel, two screw columns, and two clamping plates. The wheel is set in the sleeve body and protrudes out of the wheel slit. The screw columns are connected with the wheel and have reverse thread directions. The clamping plates are movably mounted on the screw columns. The sleeve can adjust the distance between the clamping plates by rotating the wheel, such that the sleeve can be applied for bolts or nuts of different sizes.

Abstract: A grip assembly for a tool bit has a grip, a driving device and an axle. The driving device is inserted into the grip and has a holding member, a gear unit and a sleeve. The gear unit has multiple gears and a ring. The gears are rotatably mounted in the holding member. The ring is mounted around and engages the gears. The sleeve is mounted around and engages the ring. The axle is rotatably mounted in the holding member and is engaged by the gears. When the sleeve is rotated, the gears are rotated. Accordingly, the axle is rotated by the gears such that a tool bit loosens a screw in continuous motion.

Abstract: A hand tool plate clamp has a connecting shaft, a locking column, an abutting tube, a spring, and a sliding case. The connecting shaft has an insertion slot and a column hole. The insertion slot is mounted on an end of the connecting shaft and the column hole communicates with the insertion slot. The locking column is inserted movably in the column hole. The abutting tube is mounted on and abuts on the connecting shaft. The spring abuts on the abutment ring. The sliding case is mounted on the connecting shaft and the abutting tube. The sliding case abuts on the spring and the locking column Accordingly, the sliding case can be slid movably, and the spring can enable the sliding case to fix the locking column.