Perfect for the needs of both pros and serious home mechanics, this mirror-polished 30 piece 1/4” Drive socket set is strong as well as beautiful.The jumbo high-visibility size markings are forged right into each socket sidewall and they’ll never fade or wear off. But this socket set offers more than just stylish exteriors.Inside, our innovative Z-Drive design helps these sockets get a better grip on fasteners. They turn fasteners by their sides, not their corners, giving you more control and reducing slippage at high torque loads.Precision chamfered openings make it easier to slide the sockets over fasteners. Punched center holes add working space for taller nut and bolt stock.Dependable Powerbuilt socket sets meet or exceed ANSI standards and have a lifetime warranty, all at affordable prices.Set includes:1/4-inch drive sockets: 4mm, 4.5 thru 13mm, ratchet, extension bar and assorted screwdriver bitsChrome vanadium and heat-treated steel construction for strength and durabilitySockets feature permanent high visibility size markings for easy identificationIncludes storage caseMeets or exceeds ANSI standards Lifetime warranty