Patent ID: 7044031
Filing Date: 2006-05-16
Classification: B25B

Abstract:
1. A tubular socket tool for driving a threaded fastener having a circumferential shoulder surrounding the head adjacent the threaded portion, comprising; a driving end portion, having a driving shank for receiving a rotational driving force; a socket opening end portion for receiving the head of a polygonal headed threaded fastener; the socket open end portion having an axial polygonal aperture of a cross section complementary to closely receive the head of the fastener and a depth sufficient to at least receive the head of the fastener; the socket open portion additionally having a circular counter-bore extending into the fastener head receiving aperture of a perimeter and depth to receive the shoulder of the fastener head; whereby, when a polygonal headed fastener is placed in the polygonal aperture, the head is closely received in the aperture and the shoulder is closely received in the counter-bore thereby receiving enhanced driving support.