The tool head 100, such as a socket, includes an annular groove 135 having a groove depth and a groove width that is disposed between a first rim 130 and a second rim 132. A working end 105 is adapted to engage a work piece. An opposing drive end 110 has a drive end outer diameter 120 and an aperture 115 adapted to detainably engage a lug of a tool. The first rim is disposed proximate the working end and the second rim is disposed proximate the drive end. The tool head may also include an indent 125 disposed on an inner surface of the aperture. The indent is adapted to engage an outwardly biased ball disposed on the lug to detain the tool head on the lug. The groove depth may be 5.0%-15.0% of the drive end outer diameter, with the groove width 0.25-0.47 inches. The groove allows gripping of the tool head to remove it from a tool having a lug, such as ratchet, torque or impact wrenches. The groove may be dimensioned and spaced from the drive end of the socket for improved gripping performance. For example, the groove depth may be 0.020-0.050 inches or 0.020-0.030 inches.
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