Specification Brand : KooingTech BulletPoint1 : Product Parameters: SDS plus adapter size: 1/4 socket 80mm/3.15(length), 1/4 square 65mm/2.56(length), 3/8 square 65mm/2.56(length), 1/2 square 75mm/2.95(length) BulletPoint2 : Professional Design: SDS socket adapter square bit adapter with ball carrier design, quick connection or disconnection, to ensure that the transmission process fixed, effectively reduce screw loss BulletPoint3 : Professional Manufacturing: SDS plus socket adapter set is made of stainless steel, heavy construction grade material, strong structure, high hardness, good wear resisting, long service life BulletPoint4 : Easy to Carry: The SDS chuck adapter is small in size, allowing you to extend the drill anywhere to do any job, and can fit into many kits for easy portability BulletPoint5 : Usage Scenario: SDS adapter is used for telescopic hand drills or electric screwdrivers that bend, twist and rotate using drill bits into narrow and confined spaces CompatibleFastenerDescription : Bolts, nuts, and screws of 3/8 inch, 1/2 inch, and 1/4 inch sizes DriveSystem : Hex DriveSystem1 : Square DriveSystem2 : Spline DriveSystem3 : Hex ExternallyAssignedProductIdentifier : 5056133338331 FinishType : Polished ItemName : KooingTech 4pcs SDS Plus Adapter, 1/4 Hex Socket SDS Socket Adapter, 1/4 3/8 1/2 Impact SDS Plus Socket Adapter Set for Screws Nuts Drills and Handheld Drives ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 7 centimeters ItemTypeKeyword : drive-socket-sets Manufacturer : KooingTech Material : Stainless Steel ModelName : swivel socket adapter impact swivel adapter impact universal joint set ModelNumber : KooingTech1fdzhpv4t3 NumberOfFlutes : 3 NumberOfPieces : 4 PartNumber : KooingTech1fdzhpv4t3 ProductDescription : Description: These bit holder and extension adapters are made from high quality carbon steel with heavy duty construction to ensure maximum durability. It can be used for drills and bits making these extension adapters very handy and multipurpose. Features: Hard steel adapter for maximum durability, the heavy-duty construction allows for long service life. Ball detent design for quick connect or disconnect and ensuring stay in place while driving. Universal SDS plus shank would fit many electric drills and chuck. The small size allows you to bring your bit extension anywhere to get any job done and can fit into many tool bag. There are one hex socket and three square adapters in different sizes and you can use the proper one for various needs. Specifications: Material: Stainless steel Type: SDS Plus--80mm x 1/4 hex socket, SDS Plus--65mm x 1/4 square head, SDS Plus--65mm x 3/8 square head, SDS Plus--75mm x 1/2 square head Quantity: 4 Package Includes: 1 x Hex Socket Extension Adapter 3 x Square Extension Adapters