A screwdriver tip structure includes a main body provided with an operation end. The operation end is provided with multiple first working sections and multiple second working sections. Each of the first working sections has a convex shape. Each of the second working sections has a concave shape. Each of the first working sections is provided with multiple grooves. Each of the first working sections has a first end and a second end. The second end has a diameter more than that of the first end. Each of the first working sections has a periphery provided with a phantom side face. The side face extends from the second end to the first end. Each of the grooves is provided with a first concave face. The first concave face of each of the grooves includes a first single arc.

A wallet includes a first shell with one or more openings on a shell perimeter adapted to clip one or more objects to the one or more openings; and a second shell coupled to the first shell, the second shell including a storage compartment; and first and second rails on each side of the second metal shell to slideably receive one or more cards in the storage compartment.

A tool includes a first body, a rotary member, a positioning unit and an engaging unit. By the positioning unit and the engaging unit, the rotary member is positioned relative to the first body with dual-positioning feature. When the first body is rotated, the rotary member is positioned by the positioning unit and the engaging unit. The rotary member is not likely to freely rotate because both of the positioning unit and the engaging unit fail when using the tool.

A hand tool comprises a handle having a central area having a lower end and an upper end and a pair of outwardly extending arms at the upper end, and a shaft having a fixed end connected to the lower end of the central area and an open opposite end for receiving a tool bit. A ratchet mechanism is formed between the shaft and the central area to control rotational movement of the shaft. A ring is releasably mounted on the shaft and capable of limited movement relative to the shaft.

A tool combination includes two housings each having a chamber formed by a base panel and two side panels, an axle and a shaft are secured between end portions of the housings, a tool assembly includes one or more tool members having ring members engaged with the axle and to be pivoted out and selectively folded and engaged into the space that is formed between the housings, another tool assembly includes one or more tool members having ring members engaged with the shaft and to be pivoted out and selectively folded and engaged into the space that is formed between the housings, and one or more tool assemblies are selectively and pivotally attached to either of the housings.

An anti-disengagement structure of a tool head for insertion into an insertion recess of a fastener is provided. Abutting faces extend from a periphery of an end face of a working portion. At least one abutting face is partly formed with a groove filled with an elastic member which is partly protrusive out of the groove and beyond the surface of the abutting face. The largest extent between the protruded-out part of the elastic member and the abutting face of another elastic member is larger then the largest inner extent of the insertion recess. Thereby, with the stretchable characteristic of the elastic member, the fastener can be smoothly inserted into the insertion recess and abutted against an inner surface of the insertion recess to achieve anti-disengagement effect.

A screwdriver tool with an identification structure includes: a screwdriver rod, a screwdriver head adapted to insert in and turn a screw being configured on one end thereof, a grip, configured on one end of the screwdriver rod far away from the screwdriver head; and an identification portion, configured on one end of the grip far away from the screwdriver rod, and being a three-dimensional convex-shaped body and corresponding to a shape of the screwdriver head. Whereby, a user may watch the three-dimensional convex shape of the identification portion directly to identify easily and quickly the shape of the screwdriver head.

The double-tier drain filter system includes an elongate base having an upper section and a lower section. A drain cover with perforations couples to the upper section, and the lower section couples to a drain pipe. Threads are provided between the lower section and the drain pipe to form a threaded interlock. A recess inside the upper section receives a filter assembly which includes a removable, perforated drain basket and a filter element inside the drain basket. An annular mount flange with threads extends from the bottom of the drain cover to thread into the matching inner threads of the drain basket forming another threaded interlock. The drain cover and the filter assembly serves as a double-tier, two-pass filter ranging from coarse to fine filtering, respectively. Tools are provided to facilitate installation and cleaning.

A wallet includes a first shell with one or more openings on a shell perimeter adapted to clip one or more objects to the one or more openings; and a second shell coupled to the first shell, the second shell including a storage compartment; and first and second rails on each side of the second metal shell to slideably receive one or more cards in the storage compartment.

A lighted tool shaft attachment for lighting a work space at a working end of the tool includes a sleeve that comprises an inner wall and an outer wall, which define an interior space. The inner wall also defines a channel that is positioned longitudinally through the sleeve and configured for insertion a shaft of a tool. The sleeve is reversibly couplable to the shaft. A power module is coupled to the sleeve and positioned in the interior space. A plurality of lights is coupled to a first end of the sleeve. A switch, which is coupled to the outer, is operationally coupled to the power module and the plurality of lights. The switch is configured for activation by a user to couple the power module to the lights. The lights are configured to illuminate a work space at a working end of the shaft of the tool.