4pcs SDS Extension Rod Head, Plus Shank to 1/4" Hex Socket Adaptor and 3/8" 1/2" Squares Drill Bit Holder Connector for Screws, Nuts, Any Handheld Driver

HIGH QUALITY MATERIAL: These bit holder and extension adapters are made from high quality carbon steel and chromium-vanadium steel with heavy duty construction to ensure maximum durability. LIGHTWEIGHT AND PORTABLE: Hex and square wrench adapter has small size allows you to bring your bit extension anywhere to get any job done and can fit into many tool bag. Universal SDS plus shank would fit many electric drills and chuck. POWERFUL PERFORMANCE: Ball detent design for quick connect or disconnect and ensuring stay in place while driving. Drill Bit Holder keeps fasteners and bits secure while driving. Ball detent design for quick connect or disconnect and ensuring stay in place while driving. Flexible out shield protects your hand while inside shaft rotates. Bends, twist and turns to use drill into tight and confined spaces. DIFFERENT SIZES: There are one hex socket and three square adapters in different sizes and you can use the proper one for various needs. SDS Socket Adaptor Set can be either used for general cartridge-type hand drill or electric screwdriver. WIDE RANGE OF APPLICATIONS: Socket adaptor converter is mainly used in computer chassis, electrical cabinets, furniture,electrical appliances and other arrowhead space screwdriver can not work in an environment.