MUST-HAVE HEAVY DUTY TOOLS FOR YOUR TOOLBOX – Our 3 x impact grade adapters are made from heat treated Chrome Vanadium steel and come in a convenient organizer/holder. PERFECT FOR THE TOUGHEST JOBS – The Black Phosphate Coating Treatment will make sure that your rust-proof and corrosion-resistant drill to socket adapter will endure any abuse. ONE SET OF IMPACT SOCKET ADAPTERS, UNLIMITED USES – The ¼” Hex Shank will fit all Quick Change systems and standard drill chucks, which is ideal for both professionals and DIYers. SAVE YOUR TIME & EFFORT – The chamfered edges and spring-loaded detent ball will ensure a tight and secure fit, thus allowing you to save your precious time and perform auto repair tasks easily. FOR A LIFETIME OF SUCCESSFUL PROJECTS – Meets & Exceeds ANSI (The American National Standard Institute) and backed by our Lifetime Limited Warranty for your complete peace of mind.