US Patent 11518009 Anti-slip hex allen tool

A hex headed bit and socket for enhanced non-slip application of torque force having a hex head with contoured fastener engagement surface channel at the center of the respective alternating flat tool engagement sides. The contoured channels are tapered both transversely and longitudinally and extend in angular inclination across hex head bit flat side. The defined primary channel lateral edges correspondingly embed themselves during rotational engagement within the so engaged fastener pulling the hex head bit into the engaged fastener imparting enhanced translateral points of tool engagement.