Our socket reducers are made from robust Chrome Molybdenum that will pass the test of time. What Makes The LEXIVON Adapter & Reducer Set So Special? - Rustproof Construction – prevent rust and corrosion with the smart Manganese Phosphate coating. - Spring-Loaded Detent Ball System – securely and firmly fit your drive sockets to your power tool. - Laser-Etched Sizes – easily identify the different sizes and save your precious time while working. - Convenient Tray – keep your impact socket adapters neatly organized in the handy tray. - Impact Grade Design – use our universal adapters with all your cordless drills or impact guns. Top 3 Reasons To Choose Our Impact Adapter & Reducer Set: A. Because You Want To Save Time: take all the fuss out of your auto repair tasks and finish any job faster with our adapter set. B. Because You Need Dependable Tools: unlike all those cheaply-made socket reducers, our professional socket adapters/reducers set will past the test of time. C. Because They Are Perfect For Professionals: use your Cr-Mo steel sockets for automotive repair, home maintenance or DIY projects. UNLIKE ALL THOSE FLIMSY SOCKET ADAPTERS our robust impact adapters and reducers are made from heat-treated Chrome Molybdenum alloy steel for enhanced durability. GET A BIGGER BANG FOR YOUR BUCK: While other socket reducers are vulnerable to rust and corrosion, our adapters are treated with a rust-proof Manganese Phosphate coating. REDUCE FATIGUE & DISCOMFORT: the smart spring-loaded detent ball system will prevent dropping while the through-hole in the drive end will securely lock the adapter onto the drive tang.