Specification Brand : TEKTON BulletPoint1 : Includes 12-pc. 3/8 in. drive external star impacy sockets: E4, E5, E6, E7, E8, E10, E11, E12, E14, E16, E18, E20; 13 inch socket rail BulletPoint2 : Precise E-Star Geometry – The internal six-lobe geometry is designed for a high-torque fit that resists slipping BulletPoint3 : Made from Cr-V Steel – The chromium-vanadium socket is heat-treated to 40–47 HRC for use on impact wrenches BulletPoint4 : Corrosion-Resistant – The socket is coated with a manganese phosphate finish to resist corrosion BulletPoint5 : Two Size Markings – The size is marked with a high-visibility laser marking and a permanent stamped marking that won't rub off BulletPoint6 : Friction Ring or Detent Pin Anvils – Smooth walls inside the drive end and a detent pin hole make the bit sockets compatible with both drive tool anvil types BulletPoint7 : Socket Rail – The twist-to-lock clips on the rail hold sockets securely and can be repositioned anywhere along the rail CompatibleFastenerDescription : 0.375 inches DriveSystem : Star ExternallyAssignedProductIdentifier : 7439453499049 ExternallyAssignedProductIdentifier1 : 020209065488 ExternallyAssignedProductIdentifier2 : 0020209065488 ItemName : TEKTON 3/8 Inch Drive External Star Impact Socket Set with Rail, 12-Piece (E4 - E20) | SID91116 ItemPackageDimensions_Height : 2.2 inches ItemPackageDimensions_Length : 14.3 inches ItemPackageDimensions_Width : 2.2 inches ItemPackageQuantity : 1 ItemTypeKeyword : star-drive-sockets Manufacturer : TEKTON Material : Chrome Vanadium Steel ModelName : 3/8 Inch Drive External Star Impact Socket Set with Rail, 12-Piece (E4 - E20) | SID91116 ModelNumber : SID91116 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 12 PackageLevel : unit PartNumber : SID91116 ProductDescription : Socket, Socket Size 4.5 mm, 12-Point, Alloy Steel, Chrome, Deep, Hand, Drive Size 1/4 in, Metric, Impact Rated No, Standards ASME B107.5M ProductSiteLaunchDate : 2024-04-17T08:00:01.000Z Size : 12-Piece Set (E4 - E20) SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 27111700