Specification Brand : Aiourx BulletPoint : bullet_point1 BulletPoint1 : Made of heavy duty chrome molybdenum (CR-MO) steel, after heat treatment and forging, it has high hardness and good toughness. BulletPoint2 : The Black Powder Coated to prevent the torx bit socket from rusting, and corrosion-resistant, increase the number of uses. BulletPoint3 : Double-sided laser, the front is the LOGO word, and the reverse is the scale mark, high-contrast, permanently laser and easy to read, even in low light. BulletPoint4 : 7-Pieces 3/8" Dr. impact torx bit socket sizes: T20, T25, T30, T40, T50, T55, T60. BulletPoint5 : More competent to work in a narrow space, come with a heavy duty blow molded storage case. Color : Black CompatibleFastenerDescription : T20, T25, T30, T40, T50, T55, T60. DriveSystem : Torx ExternallyAssignedProductIdentifier1 : 605660974472 ExternallyAssignedProductIdentifier2 : 0605660974472 ExternallyAssignedProductIdentifier3 : 00037103291783 ExternallyAssignedProductIdentifier4 : 0099575039034 ExternallyAssignedProductIdentifier5 : 00099575823909 FinishType : Powder Coated Hazmat : Unknown ItemDisplayWeight : 1 pounds ItemLength : 4.4 inches ItemName : Aiourx 3/8" Drive Master Impact Torx Bit Socket Set, 7-Pieces: T20 - T60, Cr-Mo Steel, Heavy Duty Storage Case ItemPackageDimensions_Height : 16.2 centimeters ItemPackageDimensions_Length : 5 centimeters ItemPackageDimensions_Width : 10.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : star-drive-sockets Manufacturer : Aiourx Material : Chrome Molybdenum Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MeasurementSystem : Inch/Metric MeasurementSystem1 : metric MeasurementSystem2 : inch ModelName : Impact Torx Bit Socket Set ModelNumber : UST188 NumberOfBoxes : 1 NumberOfItems : 7 NumberOfPieces : 7 PackageLevel : unit PartNumber : UST188 ProductDescription : Details: Heavy duty chrome molybdenum (CR-MO) steel. Heat treatment and forging. The Black Powder Coated finish. The integrated impact hex bit socket is more robust. Double-sided laser, high-contrast, permanently laser. More competent to work in a narrow space. With a heavy duty blow molded storage case.