4pcs 1/4 inch 3/8 inch 1/2 inch SDS, SDS-Plus Magnetic Extension Screwdriver

Hard steel SDS adapter for maximum durability, sturdy construction allows for long life. Ball release design allows for quick connection or disconnection and hold in place while driving. The SDS Plus universal shank is suitable for most screwdrivers, drills and electric chucks. The small size allows you to take your drill extension anywhere to do any job and can be stored in many tool bags. There are a hex socket and three square adapters of different sizes and you can use the right one for different needs.