Specification Brand : Stahlwille BulletPoint1 : EASY ACCESS: With a length of 52mm, this size 2 extension with 1/2" square drive input and output allows for easy access to hard-to-reach parts. BulletPoint2 : FAST TOOL CHANGE: Featuring QuickRelease technology, this extension ensures safe and efficient tool changes with its quick release safety lock. BulletPoint3 : BUILT TO LAST: Made from high-performance steel and chrome-plated for added durability and rust protection, this extension is built to withstand even the toughest tasks. BulletPoint4 : QUALITY GUARANTEED: Adhering to strict DIN 3123/ISO 3316 standards, this extension is manufactured under the most stringent quality control conditions for reliable performance and long-lasting durability. BulletPoint5 : MADE IN GERMANY. As a traditional German company from Wuppertal, we have stood for tools that are valued worldwide for their excellent quality for over 160 years. CompatibleFastenerDescription : 0.375 inches DriveSystem : Square ExternallyAssignedProductIdentifier1 : 4018754141265 ExternallyAssignedProductIdentifier2 : 04018754141265 ExternallyAssignedProductIdentifier3 : 00613364183274 FinishType : Matt IncludedComponents : 12,5 mm (1/2") QuickRelease extension L.52 mm d.23 mm ItemDisplayWeight : 0.1 kilograms ItemLength : 1.22 inches ItemName : Stahlwille 13011001 509QR Quickrelease Extension with 12.5mm Square Drive, 2" Length, 23mm Diameter, High-Performance Steel, Quick Release Lock, Made in Germany ItemPackageDimensions_Height : 13.7 centimeters ItemPackageDimensions_Length : 2.8 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : square-drive-sockets Manufacturer : Stahlwille Material : Alloy Steel Material1 : Chrome Material2 : Aluminium ModelName : 8Pc 3/8" Drive Chrome Triple Square Bit Socket Rail ModelNumber : 509/2QR NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : 13011001 ProductSiteLaunchDate : 2012-05-17T07:40:59.754Z Range : 1/2" Size : 2 Style : Triple Square Bit Socket SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1