Patent ID: 8707830

Claim:
A driving member for driving a fastener having a head which a wrenching tool is adapted to engage and which has corners which are or have become damaged, comprising a socket comprising: a hole extending therethrough and defining an inner peripheral edge having annular cross sections, with the inner peripheral edge defining a plurality of engaging sides and slots extending longitudinally, with two adjacent engaging sides disposed on two opposite boundaries of one slot and each engaging side angled with an adjacent engaging side, with each engaging side including first, second, and third sections extending longitudinally, with the first section including a first terminal side coincident with one of the two boundaries of one slot and a second terminal side and approaching to a center of the hole as the first section extends from the first terminal side to the second terminal side, with the second section including a first terminal side and a second terminal side and extending away from the center of the hole as the second section extends from the first terminal side to the second terminal side, with the first terminal side of the second section connected with the second terminal side of the first section with the second section extending from the first section at a non-parallel angle, with the third section including a first terminal side and a second terminal side coincident with one of the two boundaries of one slot, with the first terminal side of the third section connected with the second terminal side of the second section with the third section extending from the second section at a non-parallel angle to the second section, with each slot radially and equally spaced from the center of the hole; wherein the socket includes an outer peripheral edge having annular cross sections, with the inner peripheral edge located inwardly and spaced from the outer peripheral edge; and wherein when the socket is engaged with the wrenching tool to drive the fastener, the head of the fastener is received within the hole of the socket and is only in contact with the second terminal side of the first section of each engaging side defining an engaging point prior to operably moving the socket, wherein the outer peripheral edge of the socket is abutted against a driving end of the wrenching tool, and wherein the head of the fastener is aligned coaxially with the socket and the driving end of the wrenching tool and defines a coaxial line, wherein the outer peripheral edge thereof is polygonal and includes a plurality of sides.