Guarantee: Hello, Welcome, You'Ve Worked Hard! Thank You For Choosing Our Product. If The Product Has Any Quality Problems Within 5 Years, Please Do Not Hesitate To Contact Us Before Making An Evaluation. We Will Give You A Full Refund. Thank You For Your Collaboration. We Offer Convenient 7*24 Hour Customer Service For Customers.Purpose: This Adapter Set Is Designed To Provide A Locked Extension To Your Existing Tool. Provides Extra Length To Reach A Multitude Of Hard To Reach Spaces. The Spring Ball Lock Ensures A Tight Fit In The Driver'S Head To Prevent Slipping During Use. Specifically Machined To Securely Fit A Handheld Screwdriver, Drill Driver Or Impact Wrench.Package Contains: 3Pcs: 1/4", 3/8", 1/ 2" Each With 1/4" Hex Key/Driver Bits For All Quick-Change Drill Chuck Systems. Turns Any Electric Drill Into A Conductive Power Nut Heavy-Duty Spring-Loaded Ball Bearing Holds Sockets Securely In Place. Square. Sockets Snap Firmly And Won'T Slip.Colorful: Easy To Choose: Different Color-Coded Rings, Clear Help Quickly Choose The Right One. Our Products Belong To The Latest Updates, The Quality Is Super Good. Material: Chrome Vanadium Quality: Manufactured From Hardened Chrome-Vanadium (Cr-V) Steel To Ensure Long Life The Construction To Be Compatible With The Most Powerful Impact Guns. Usage: Fits Comfortably And Securely In Your Drill Chuck Or Hand-Held Driver. Comprised Of Your Most Common Bit Sizes 1/4", 3/8", And 1/3" Change Shank Sizes Provides Versatility And Convenience No Matter Which Tool You Have Chosen To Use. Great For Dyi, Auto Repairs, Household Maintenance, And Most General Repairs. A Good Addition To Any Set Of Tool Boxes.