Government supplies. General schedule of supplies: class 40, Tools, machine (bending rolls, drop hammers, drills, grinders, lathes, milling machines, planers, presses, punches, riveters, rolling machines, saws, shears, etc.), and all accessories, outfits, and parts, supplement 2, Pneumatic rock drills, June 16, 1987-Feb. 28, 1938; prepared by Branch of Supply.