A socket holder is provided, including: a first member, including a base and a post, the post being connected to the base and extending in an axial direction; a second member, configured for assembling of a socket including a positioning hole, sleeved on the post and movable between a release position and a lock position relative to the first member in the axial direction; and a detent member, disposed between the first member and the second member; wherein when the second member is located in release position, the socket is movable relative to the second member in the axial direction; when the socket is sleeved on the second member and the second member is located in lock position, the detent member is protrusive beyond the second member and at least partially engaged within the positioning hole so that the socket is positioned to the second member.

A tool for torquing a regulator onto a cylinder of a portable cylinder assembly. The tool includes a nut and a socket. The nut is configured to fit around a body of a regulator of a portable cylinder assembly. As such, the nut has a first set of grooves that avoids one or more valve assemblies on the body of the regulator. The socket has a cavity extending therethrough such that the cavity consists of three sections: a top section, a middle section and a bottom section. The top section of the socket is configured to be coupled to a device that applies a torque force on the socket. The middle section of the socket is configured to avoid a case of the regulator which is disposed above the body of the regulator. The bottom section of the socket is configured to be coupled to the nut.

A tool for torquing a regulator onto a cylinder of a portable cylinder assembly. The tool includes a nut and a socket. The nut is configured to fit around a body of a regulator of a portable cylinder assembly. As such, the nut has a first set of grooves that avoids one or more valve assemblies on the body of the regulator. The socket has a cavity extending therethrough such that the cavity consists of three sections: a top section, a middle section and a bottom section. The top section of the socket is configured to be coupled to a device that applies a torque force on the socket. The middle section of the socket is configured to avoid a case of the regulator which is disposed above the body of the regulator. The bottom section of the socket is configured to be coupled to the nut.

A extractor insert may a body and a securing lip. The body may have a fastener engagement recess. The securing lip may extend radially away from a central axis beyond an exterior of the body. The fastener engagement recess may be an internal channel through the body and is open at a driven end and a drive end. Engagement ribs may extend from internal sidewalls of the body towards the central axis, and each engagement rib may include an apex that extends along a length of the engagement rib. Each engagement rib may have an opposing engagement rib such that apexes of the opposing engagement ribs may be disposed on a common plane with the central axis. Further, each apex may taper at a taper angle such that a distance between apexes of opposing engagement ribs is largest at the drive end and smallest at the driven end.

A extractor insert may a body and a securing lip. The body may have a fastener engagement recess. The securing lip may extend radially away from a central axis beyond an exterior of the body. The fastener engagement recess may be an internal channel through the body and is open at a driven end and a drive end. Engagement ribs may extend from internal sidewalls of the body towards the central axis, and each engagement rib may include an apex that extends along a length of the engagement rib. Each engagement rib may have an opposing engagement rib such that apexes of the opposing engagement ribs may be disposed on a common plane with the central axis. Further, each apex may taper at a taper angle such that a distance between apexes of opposing engagement ribs is largest at the drive end and smallest at the driven end.

A tool with a drive lug having groove formed on the drive lug to promote failure of the drive lug before internal component failure. The groove has a predetermined diameter and is formed on the drive lug or ratchet square to cause failure of the drive lug, due to a torsional ductile fracture, before any internal component failure of the tool, such as, for example, gear and/or pawl failure in a ratchet wrench.

A structure for replacing shear wrench head comprises a body having an inner sleeve portion, a ring groove is disposed around the inner sleeve portion and a first assembly portion is disposed on the inner sleeve portion; a chuck unit having a second assembly portion assembled with the first assembly portion; a central sleeve portion having at least one through hole with a locking member provided therein, a stop portion protruding inwardly is provided on the central sleeve portion, when the stop portion wedges with the first and second assembly portions, a position of the through hole approximately overlaps with the ring groove of the inner sleeve portion, so that the locking member can be disposed between the ring groove and the through hole; and an outer sleeve portion slidably disposed on the central sleeve portion, and capable of optionally restricting the locking member from moving outwardly.

Disclosed is a tool head, such as a socket, having an annular groove that allows gripping of the tool head to remove the tool head from a tool having a lug, such as ratchet, torque or impact wrenches. The groove is spaced from the drive engagement end of the socket for improved gripping performance. The groove dimensions were determined to improve gripping performance as well. For example, the groove can have a depth of 0.020″-0.050″, preferably 0.020″-0.030″. More broadly, the groove can have a depth of 5.0%-15.0%, and preferably 5.0%-10.5%, of the drive end outer diameter. The groove can, either alone or in combination with the above ranges, have a width of 0.25-0.47″, preferably 0.29-0.43″. The groove can, either alone or in combination with the above ranges, begin at a distance of 0.070-0.160″, preferably 0.090-0.140″, and have an end of groove farthest from the end of the socket of 0.32-0.63″, preferably 0.38-0.57″.

Disclosed is a tool head, such as a socket, having an annular groove that allows gripping of the tool head to remove the tool head from a tool having a lug, such as ratchet, torque or impact wrenches. The groove is spaced from the drive engagement end of the socket for improved gripping performance. The groove dimensions were determined to improve gripping performance as well. For example, the groove can have a depth of 0.020″-0.050″, preferably 0.020″-0.030″. More broadly, the groove can have a depth of 5.0%-15.0%, and preferably 5.0%-10.5%, of the drive end outer diameter. The groove can, either alone or in combination with the above ranges, have a width of 0.25-0.47″, preferably 0.29-0.43″. The groove can, either alone or in combination with the above ranges, begin at a distance of 0.070-0.160″, preferably 0.090-0.140″, and have an end of groove farthest from the end of the socket of 0.32-0.63″, preferably 0.38-0.57″.