General requirements, dimensions, tolerances, for cylindrical, side and face, slotting, screw slotting, single, double and equal angle cutters; T slot, convex, single and double corner rounding cutters; metal slitting saws; taper and parallel shank slot drills; shell end mills; taper and parallel shank end mills; hollow mills. Diameters of arbors and standard bores, dimensions of keys and keyways for arbors, full details of standard arbors for shell end mills. The various types of cutter are fully illustrated and defined.