Patent ID: 7373860

Claim:
A screwdriver T-handle to be gripped by a user's hand for rotating fasteners and having a stem portion extending along a first axis and a cross-bar portion extending along a second axis perpendicular to said first axis and said cross-bar portion having a planar top surface and two sides and with said two portions forming the letter T in an elevation side view thereof, the improvement comprising: said cross-bar portion having two ends spaced apart along said second axis, two grooves respectively on said sides and extending substantially along the complete said sides and each of said grooves presenting a concavity for respective contact by the user's thumb, a first one of said grooves on a first one of said sides and angularly extending longitudinally relative to the top surface plane and from a first one of said ends and adjacent said top surface to a second one of said ends and spaced from said top surface, a second one of said grooves on a second one of said sides and angularly extending longitudinally relative to the top surface plane and from a second one of said ends and adjacent said top surface to the first end and spaced from said top surface, for selective contact with the user's thumb in either of said grooves for the same direction of rotation of said handle in only one direction of rotation from thumb contact with either one of said grooves, and each said groove having a length and a width and with said length being greater in dimension than that of said width and being an arcuate concave shape in viewing along said length and thereby across said width.