Laminated gear shaving tools

A laminated gear shaving tool comprising a body adapted to be rotated about a predetermined axis, a plurality of separately formed discs mounted rigidly on said body and forming a stack of discs extending along said axis, said discs being disposed in planes extending perpendicular to said axis, each of said discs having two opposite axially facing sides and each being formed with a predetermined number of circumferentially spaced teeth, each of said teeth having two opposite circumferentially facing flanks, each flank of a majority of said predetermined number of teeth and one flank of a minority of said predetermined number of teeth being cut away at each axially facing side of each disc so as to form a land on each flank of each of said majority of teeth and on said one flank of each of said minority of teeth the other flank of each of said minority of said predetermined number of teeth being cut away at only one axially facing side of each disc so as to form a land on said other flank of each of said minority of teeth, the lateral edges of each land constituting cutting edges, and the cutting edges of the land of each tooth being staggered axially from the cutting edges of the corresponding land of each adjacent tooth whereby the position of a stagger line around the circumference of each disc and defined by one set of lateral cutting edges on successive lands is arranged such that the teeth may be sharpened a number of times with each sharpening leaving renewed cutting edges on such lands and maintaining an effective cutting edge at the joint line between adjacent discs.