The SLH hand tool hardening mesh belt furnace is a continuous austenitizing and quenching unit designed for the hardening of hand tools and similar small steel components such as wrenches, pliers, screwdriver bits, chisels, punches and knives. A 400mm wide mesh belt carries the parts through four controlled heating zones to an austenitizing temperature of 860C, then delivers them directly into an oil quench that cools them rapidly to form a hard martensitic structure. Precise