IMPACT SOCKET SET - 12pc 3/8" Drive Metric Deep Swivel Impact Socket Set, TG-312MD DURABLE MATERIALS - Made from Chromium-vanadium Steel for high strength and durability while having anti-corrosive properties TOUGH - Black oxide coating for corrosion resistance and easy handling ORGANIZED TOOLS - Sizes are stamped for easy identification of size and will not rub off PEACE OF MIND - Purchase with confidence backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects ANSI STANDARDS - Meets or exceeds the standards established by the American National Standards Institute PROFESSIONAL GRADE - Genius Tools are designed and made for use by professional technicians and built to perform over a lifetime of heavy use. Trust Genius for a quality tool at a value cost to you.