A tool head. The tool head includes an inner core and a plurality of nested shells fitted over the inner core. Each shell is engaged with the inner core at a proximal end. Each shell is independently biased towards the distal end of the inner core and independently compressible away from the distal end. Each shell is independently slidable relative to the inner core and relative to each other. A handle may be used to provide additional leverage and to fold over the tool head when the tool head is not in use.

A socket structure contains: a body, a fitting element, a first spring, a drive shaft, and a second spring. The body includes a first accommodation groove, a connection slot, a first trough, and a second trough. The fitting element includes a front section and a rear section, wherein the rear section of the fitting element has a notch, and the body includes at least one positioning element. The first spring is housed in the first trough and its first end abuts against the first trough and the second trough, and a second end of the first spring is biased against the rear section. The drive shaft includes a polygonal extension and a peripheral rib. A first end of the second spring abuts against the second trough, and a second end of the second spring pushes the polygonal extension to extend out of the second accommodation groove.

An impact socket includes a socket body having a first end and an opposing second end, the socket body defining a first fastener driving structure at the second end. The impact socket includes a collar assembly carried by the socket body, the collar assembly defining a second fastener driving structure. The collar assembly includes a support sleeve and a base sleeve that define a chamber configured to constrain movement of a securing mechanism relative to the socket body, the securing mechanism configured to selectively secure the collar assembly to the socket body when the collar assembly is disposed in at least one of a first position relative to the second end of socket body and a second position relative to the second end of socket body.

A socket assembly includes an outer socket and a first movable socket mounted in the outer socket. The outer socket is provided with a receiving chamber having a peripheral wall provided with a plurality of drive blocks and a plurality of retaining grooves. The first movable socket is movably mounted in the receiving chamber and includes a base and a plurality of driving pieces provided on the base. An elastic member is biased between the base and the outer socket. Each of the driving pieces has a first side provided with a restriction portion slidably mounted in one of the retaining grooves and a second side provided with a driving portion which has a pressing face.

A hex shank nut driver with onboard slidable sockets is disclosed. The aforementioned invention being comprised of a hex-shaped shank made of a rigid metal such as stainless steel, titanium and the like and having one end configured to be received by a conventional nut driver handle and another end configured to be received by sockets thereon. Said invention providing a means for storing said often-used sockets on the shank. The shank having raised portions preventing stored sockets from contacting each other as well as a retainer ring to selectively hold a socket for driving. The sockets being different sizes allowing them to be engaged with one another and also being color coded to allow for quick selection in the field. An object of the invention is to provide a means for easy access and storage to commonly-used nut drivers for mechanics in the field.

An impact socket includes a socket body having a first end and an opposing second end, the socket body defining a first fastener driving structure at the second end. The impact socket includes a collar assembly carried by the socket body, the collar assembly defining a second fastener driving structure. The collar assembly includes a support sleeve and a base sleeve that define a chamber configured to constrain movement of a securing mechanism relative to the socket body, the securing mechanism configured to selectively secure the collar assembly to the socket body when the collar assembly is disposed in at least one of a first position relative to the second end of socket body and a second position relative to the second end of socket body.

An accessory driver tool connectable to a power tool includes a main body and a sleeve. The main body includes a first end, a second end, a tool coupling mechanism at the first end, and a first fastener driving member disposed at the second end. The sleeve, disposed concentrically about the main body, includes a second fastener driving member disposed adjacent the second end of the main body. The sleeve is axially displaceable along the main body between a retracted position, in which the first fastener driving member is exposed to engage a first fastener, and an extended position, in which the second fastener driving member is exposed to engage a second fastener. The sleeve is rotatable relative to the main body while in the extended position.

A tool head. The tool head includes an inner core and a plurality of nested shells fitted over the inner core. Each shell is engaged with the inner core at a proximal end. Each shell is independently biased towards the distal end of the inner core and independently compressible away from the distal end. Each shell is independently slidable relative to the inner core and relative to each other. A handle may be used to provide additional leverage and to fold over the tool head when the tool head is not in use.

A nested socket assembly is disclosed. The nested socket assembly includes an inner socket having a base portion with a double hex pattern which protrudes beyond the adjacent shaft surface of the inner socket. The base portion is adapted to engage an internal double hex pattern of the outer socket. A compression spring presses the inner socket outward of the outer socket. The inner socket is locked within the outer socket via a retaining clip, such as a circlip. The inner socket is free to move inward with respect to the outer socket so that the inner socket may engage a smaller size hex head or nut, but may also be pushed inward so that the outer socket can engage larger hex head or nut. The assembly is configured to attach to an impact driver.

A socket may include a socket body comprising a fastener engagement aperture configured to receive at least a portion of a fastener and a forward sleeve affixed external to the socket body at a forward end of the socket body. The forward sleeve may be configured to rotate radially relative to the socket body, and translate axially relative to the socket body. The socket may also include a biasing member configured to urge the forward sleeve to translate axially relative to the socket body in a direction towards the forward end of the socket body. Further, the socket body may include an internal cavity, and the socket may include a magnet disposed within the internal cavity. The magnet may be configured to translate axially within the internal cavity relative to the socket body and be configured to magnetically attract the fastener to the forward end of the socket body.