Generally, a service tool and method of using the service tool is disclosed. The service tool includes a first hex key having a first diameter size and defines a first cavity along a longitudinal length thereof. The service tool further includes a second hex key having a second diameter size smaller than the first diameter size, and the second hex key is designed to slidably translate within the first cavity of the first hex key. The service tool can, for example, be used to service a liquid line valve using the second hex key and a suction line valve using the first hex key, with the second hex key retracting into the first hex key when servicing the suction line valve.

A screwdriver device including a handle having an elongate channel extending partially therethrough of the handle and an axial blade member having a first distal end and a second distal end being configured and disposed for sliding through the elongate channel of the handle and a locking mechanism configured and disposed for releasably locking the axial blade member at a first operable position relative to the handle wherein the first distal end is exposed and the second distal end is disposed within the handle. The screwdriver device further includes a first tool head disposed on the first distal end of the blade member and an ejection mechanism configured and disposed within the handle to constantly urge the axial blade member out of the locking mechanism from the first operable position to a second inoperable position.

Methods and apparatus for a fastener head having a dual zone socket area and a mating driver bit according to aspects of the present technology include a fastener configured with driving surfaces adapted to provide enhanced engagement between each other during use. The fastener includes a recessed socket area with a sidewall that has an upper inwardly tapering section and a lower vertical section that extends to the bottom of the recessed socket area. The upper inwardly tapering section of the sidewall may also include an offset relative to the lower vertical section to create asymmetrical driving and removal surfaces. The technology also includes a corresponding mating driver bit configured with mating surfaces to the fastener to provide enhanced engagement between the fastener and mating driver bit. The technology also allows either the fastener or the driving bit to be used with preexisting fasteners and driver bits.

An article of clothing with tools incorporated therein. The article of clothing has a strap assembly that has a strap body with first and second strap ends and at least one tool assembly. The at least one tool assembly is secured within the first and/or second strap ends. The at least one tool assembly is a fin key. The at least one tool assembly has a plate and a shaft. The plate is secured within the strap body while a respective shaft protrudes from a respective first or second aperture. The first and second apertures each have a predetermined size to secure the plate within the strap body while a respective shaft protrudes from the respective first or second ends. The strap assembly is incorporated onto an article of clothing such as a boardshort.

A tool for use in dental implants wherein said tool includes a retention element held in the tool shaft via a friction fit. The retention element being adapted to grip a variety of impact drivers via a frictional fit for use in tightening procedures of a dental procedure. Wherein said tool also includes a variety of features for interaction with additional dental instruments, or that aid in cleaning and sanitization of the tool.

A torque transmission driver has a first end portion adapted to receive and transmit torque from a torque generation source, and a second end portion including a shaped tapered bit having drive surfaces with an alternating series of five or six lobes and troughs about a rotational axis, having a taper angle between 15 and 45° from the rotational axis operable to engage corresponding drive surfaces in a plurality of at least two size fasteners, the tapered drive surfaces of the bit comprising a first tapered portion operable to engage drive surfaces of a first sized fastener and a second tapered portion operable to engage drive surfaces of a second sized fastener, the drive surfaces of the second sized fastener being larger than the drive surfaces of the first sized fastener.

A lock defining a rotating axis and being installed on a door includes a mounting plate, a fastening member and a first handle set. The mounting plate is disposed on a side of the door and includes a mounting plate body and a protruding lug connected to the mounting plate body. The mounting plate body includes a locking slot structure. The protruding lug includes a fastening hole. The fastening member is inserted through the fastening hole of the protruding lug to fix the mounting plate on the door. The first handle set is assembled on the mounting plate. The first handle set includes an engaging structure and a decoration cover. The engaging structure is engaged with the locking slot structure to fix the first handle set on the mounting plate. The decoration cover covers the mounting plate and includes an opening corresponding to the fastening hole.

A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.

Screw, screwdriver and screw fastening set, the screwdriver (1) comprising a screw engaging configuration (10) with a core (11) surrounded by a number of protruding longitudinal ribs (12) elongated in the longitudinal driver axis (DA) direction and radially distributed around the core (11) in radial symmetry, and wherein successive transversal cross-sections of the core (11), perpendicular to the longitudinal driver axis (DA), have a regular polygonal shape, longitudinal cross-sections of the core (11), coincident with the longitudinal driver axis (DA), have a convex shape, and each protruding longitudinal rib (12) is connected to the core (11) on an edge between two adjacent arched convex surfaces of the core, a central portion (13) of each side of the regular polygonal shape being exposed for coupling into a complementary flat surface of a driver engaging configuration of the screw, providing friction-retention between the screw and the screwdriver.

A fastener extractor device for removing fasteners and disengaging the extractor from the so engaged fastener. The extractor includes a threaded main body with a hex drive head end portion and oppositely disposed elongated tool engagement hex body with multiple bracing sidewalls with independent contoured fastener engagement channels for fastener insertion and continued rotational removal. A tubular hex surface extractor nut is threadably disposed on the main body member for reversed thread rotation advancement to physically disengage the tool engagement body from the removed fastener.