Profile: Production Specialties, Inc. specializes in high-precision machining services to a variety of industries ranging from military, oil & gas, pump & valve, and farming. We specialize in castings as well as bar stock machining. We perform boring, honing, milling, turning, grinding, gear cutting, and drilling. Examples of our products include crankcases, crankshafts, cylinders, cylinder liners, pistons, piston assemblies, heads, oil pumps, valve bodies, and roller shafts.