Abstract: A screw depth adjuster used for driving screws to the required depth is revealed. Users can control the depth of the screw being driven to workpiece/material by the screw depth adjuster. The screw depth adjuster includes a rod assembled with a control member, a driving member and a flared sleeve. The control member abutting against and assembled with the driving member is used for locking the driving member so that the driving member is unable to move. The flared sleeve is driven by the driving member mounted therein to to move forward or backward on the rod. Users determine the longitudinal movement of the driving member according to the depth of the screw required so that the screw will not be driven beyond the depth required in the workpiece. Thereby dents formed on the surface of the workpiece can be minimized.

Abstract: A screw depth adjuster used for driving screws to the required depth is revealed. Users can control the depth of the screw being driven to workpiece/material by the screw depth adjuster. The screw depth adjuster includes a rod assembled with a control member, a driving member and a flared sleeve. The control member abutting against and assembled with the driving member is used for locking the driving member so that the driving member is unable to move. The flared sleeve is driven by the driving member mounted therein to to move forward or backward on the rod. Users determine the longitudinal movement of the driving member according to the depth of the screw required so that the screw will not be driven beyond the depth required in the workpiece. Thereby dents formed on the surface of the workpiece can be minimized.

Abstract: An anti-theft hangtag is revealed. The anti-theft hangtag is used for packing tools with circular grooves. The hangtag includes a hanging portion and a mounting portion. The mounting portion consists of a receiving portion and antitheft members. The antitheft members are arranged at one end of the receiving portion with an opening. The antitheft members are used to clamp the tool and preventing the tool from being removed from the hangtag.

Abstract: An anti-theft hangtag is revealed. The anti-theft hangtag is used for packing tools with circular grooves. The hangtag includes a hanging portion and a mounting portion. The mounting portion consists of a receiving portion and antitheft members. The antitheft members are arranged at one end of the receiving portion with an opening. The antitheft members are used to clamp the tool and preventing the tool from being removed from the hangtag.

Abstract: An auxiliary device of screwdriver refers to an auxiliary device attached on a screwdriver, which is adapted for keeping coupled on a recess close to an end of the screwdriver. The auxiliary device has an expanding portion and a hollow column formed by the extension of the expanding portion. An end of the expanding portion has a magnetic element arranged thereon. The hollow column is formed by connecting a plurality of ribs and walls. The inner margin of the hollow column extends to form a plurality of locking portions that allow the housing to couple with the screwdriver, wherein the auxiliary device is able to pivot on the screwdriver.

Abstract: An auxiliary device of screwdriver refers to an auxiliary device attached on a screwdriver, which is adapted for keeping coupled on a recess close to an end of the screwdriver. The auxiliary device has an expanding portion and a hollow column formed by the extension of the expanding portion. An end of the expanding portion has a magnetic element arranged thereon. The hollow column is formed by connecting a plurality of ribs and walls. The inner margin of the hollow column extends to form a plurality of locking portions that allow the housing to couple with the screwdriver, wherein the auxiliary device is able to pivot on the screwdriver.

Abstract: A hole saw assembly is revealed. The hole saw assembly is a hole saw with a quick change drill rod. The hole saw assembly includes a quick release device and the drill rod, both arranged at the hole saw. The drill rod is inserted through the quick release device and the quick release device is for fastening and releasing a drill head of the drill rod. Thereby the drill rod is fitted over the quick release device and users can fasten and release the drill rod quickly. Users can also quickly mount a shank of the drill rod quickly into the hole saw. The drill rod is fast slid out of the quick release device for replacement of a new drill rod. Then the shank is locked on the hole saw so that the shank and the hole saw can rotate synchronously.

Abstract: A hole saw assembly is revealed. The hole saw assembly is a hole saw with a quick change drill rod. The hole saw assembly includes a quick release device and the drill rod, both arranged at the hole saw. The drill rod is inserted through the quick release device and the quick release device is for fastening and releasing a drill head of the drill rod. Thereby the drill rod is fitted over the quick release device and users can fasten and release the drill rod quickly. Users can also quickly mount a shank of the drill rod quickly into the hole saw. The drill rod is fast slid out of the quick release device for replacement of a new drill rod. Then the shank is locked on the hole saw so that the shank and the hole saw can rotate synchronously.

Abstract: A quick-change attachment configuration is directed to a tool for use with a hole saw for boring holes on a wooden plank, particularly the quick-change attachment configuration is arranged for quickly replacing a longitudinal body, which is a drill bit shank having a driving end, a tool end, and a limiting portion. The configuration includes a quick-change attachment for assembling a longitudinal body and a hole saw which has an axial hole for allowing a longitudinal body to move on the quick-change attachment, and a locking component for locking and releasing the longitudinal body on and from the quick-change attachment. The locking component has a first component and a second component, which when used, the longitudinal body is easily moved slidably and locked so the shreddings emerging from the hole saw are cleaned.

Abstract: A screwdriver bit is revealed. The screwdriver bit includes a driving portion, a narrow neck portion integrated with and extended from the driving portion, and a working segment integrated with and extended from the narrow neck portion. The narrow neck portion consists of a connection portion, a first tapered transition, and a second tapered transition. The first tapered transition is an arc taper and the second tapered transition is a straight taper. When the screwdriver bit is driven by a power tool and is rotated at high speed, the torsional stress generated is dispersed by the first tapered transition while the second tapered transition is used to reduce torsional stress of the narrow neck portion. Thus the wearing of the screwdriver bit is effectively reduced.

Abstract: A screwdriver bit structure having auxiliary positioning function includes a screwdriver bit of which one end is a circular cylinder and having a driving portion that is any one of a slotted type, a cross type and a polygon type. Another end of the circular cylinder is a fitting portion that is buckled to the screwdriver bar. The features of the invention are that the circular cylinder has a concave ring groove near the front of the driving portion. An auxiliary sheath is a long tube body that has a tube hole. The internal diameter of the tube hole is slightly larger than the periphery of the circular cylinder. A protruding ring is disposed to an internal wall of the tube hole. Accordingly, the tube hole of the auxiliary sheath can cover the periphery of the circular cylinder to allow the screwdriver bit to achieve the absolute positioning.

Abstract: The present invention relates to a quick-change attachment means for a hole saw, which is directed to a tool for use with a hole saw for boring holes on a wooden plank, particularly a quick-change attachment means for quickly replacing a longitudinal body, which is a drill bit shank having a driving end, a tool end, and a limiting portion. The present invention is characterized by: it is a quick-change attachment means for assembling a longitudinal body and a hole saw, it has an axial hole for allowing a longitudinal body to move on a quick-change attachment means, a locking component for locking and releasing the longitudinal body on and from the quick-change attachment means. The locking component has a first component and a second component, which when used, the longitudinal body can be easily moved slidably and locked so the shreddings emerging from the hole saw can be cleaned.

Abstract: A joint recognition member is revealed. The joint recognition member includes a joint body formed by a cylinder connected with a polygonal prism. A polygonal hole with a magnet part is set on the cylinder so as to attract driver bits by magnetic force. The device features on that: a narrow neck part with a ring groove is arranged at one end of the cylinder near the polygonal prism. The ring is wrapped around the narrow neck part and outside diameter of the ring is no smaller than that of the cylinder. A protruding ring on the ring is mounted and moved freely in the ring groove. An outer surface of the ring is labeled with words such as size. According to the corresponding polygonal hole, the ring has different shapes and sizes in various colors for fast recognition.

Abstract: A screwdriver bit is revealed. The screwdriver bit includes a driving portion, a narrow neck portion integrated with and extended from the driving portion, and a working segment integrated with and extended from the narrow neck portion. The narrow neck portion consists of a connection portion, a first tapered transition, and a second tapered transition. The first tapered transition is an arc taper and the second tapered transition is a straight taper. When the screwdriver bit is driven by a power tool and is rotated at high speed, the torsional stress generated is dispersed by the first tapered transition while the second tapered transition is used to reduce torsional stress of the narrow neck portion. Thus the wearing of the screwdriver bit is effectively reduced.

Abstract: A padlock container assembly for packing and maintaining small articles is assembled primarily from a box container and a closure for closing the open top of the container. Buckle holes are disposed in the upper sidewall of the container that cooperate with elastic closure pieces disposed on a skirt of the closure to lock the closure the container. The closure has a sliding cover capable of being moved according to a predetermined path disposed on an external cover of the closure. A series of holes in the closure allows for various connection arrangements between closure parts. A hangtag extends upwardly from the external cover to allow the container assembly to be hanging and exhibiting.

Abstract: A padlock container structure comprises a container box having one opening end that is connected to an external cover through buckling manner; one end of the external cover provided with a shaped hole capable of filling articles, a sliding cover capable of being moved according to a predetermined path disposed to an external end surface of the external cover; one end of the sliding cover covering the shaped hole; a hangtag, one end of the hangtag having a rod body capable of temporarily integrating the external cover and the sliding cover, another end of the hangtag having a hang hole provided for hanging and exhibiting; wherein after the rod body is cut, the sliding cover is shifted and regulated to allow the shaped hole showing opened state or closed state.

Abstract: A joint recognition member is revealed. The joint recognition member includes a joint body formed by a cylinder connected with a polygonal prism. A polygonal hole with a magnet part is set on the cylinder so as to attract driver bits by magnetic force. The device features on that: a narrow neck part with a ring groove is arranged at one end of the cylinder near the polygonal prism. The ring is wrapped around the narrow neck part and outside diameter of the ring is no smaller than that of the cylinder. A protruding ring on the ring is mounted and moved freely in the ring groove. An outer surface of the ring is labeled with words such as size. According to the corresponding polygonal hole, the ring has different shapes and sizes in various colors for fast recognition.

Abstract: A screwdriver bit structure sequentially comprises a connection section, a neck reducing section and a driving section. A plurality of arc grooves is circularly disposed to a front of the driving section to form an operating end capable of embedding with a locking member. An effective working section is disposed to a front of the operating end, the characterized in that a reinforcement section is preset between an end of each arc groove of the driving section and a relative bottom edge of the driving section. An external diameter of a maximum cross-section of the effective working section is greater than a length of the neck reducing section. An external diameter of the neck reducing section is greater than or equal to a length of the working section. An upper tapering transition is disposed between the neck reducing section and the driving section.