ergonomic handset for precision manual tools comprising an elongated body and at least one working end comprising a tool - insertion opening at one of said body &# 39 ; s ends and a gripping zone near said opening , said gripping zone comprising three finger - rests designed to form a triangular tapered profile . a saddle - like component may be attached to the handset at the middle thereof , to be worn around the ridge connecting the thumb and the forefinger .