Specification Brand : Upenjok BulletPoint1 : PREMIUM CR-V:The impact extension set is made of heat-treated CR-V steel,it have superior hardness and can withstand high torque from impact tools.Black phosphate finish provides strong wear resistance and corrosion resistance BulletPoint2 : SPRING-LOADED BALL DESIGN: The spring loaded stop ball design can provide tight connections,through hole allowing for the insertion of fasteners and enhancing the connection to avoid damage to the parts BulletPoint3 : SIZES IDENTIFICATION:The 1/2 inch drive socket extensions include 3-inch, 6-inch, and 10-inch lengths with laser-etched dimensional markings ,clearly labeled dimensions, resistant to wear and tear,easy to use BulletPoint4 : WIDE RANGE OF USE:It can be used for car maintenance, furniture maintenance, mechanical maintenance, and is compatible with electric, manual, and pneumatic wrenches to meet your various needs and facilitate your work BulletPoint5 : QUALITY & SERVICE GUARANTEE - We provide one-year warranty support. If you encounter any questions about the extension bars, please feel free to contact us. We will give you a 100% satisfactory reply within 24 hours Color : Chrome CompatibleFastenerDescription : 0.5 inch DriveSystem : Square, Hex ExternallyAssignedProductIdentifier1 : 0749346912010 ExternallyAssignedProductIdentifier2 : 749346912010 FinishType : Black Phosphate Finish,Corrosion Resistance ItemLength : 10 inches ItemName : Upenjok 3PCS 1/2-Inch Drive Impact Extension Bar Set,3,5,10-inch | Premium Cr-V Steel with Black Phosphate Finish ItemPackageDimensions_Height : 31.9024 centimeters ItemPackageDimensions_Length : 2.3876 centimeters ItemPackageDimensions_Width : 8.3058 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : drive-socket-sets Manufacturer : Upenjok Material : Chrome Vanadium Steel ModelName : Isslly 6PCS 1/4 Inch Impact Socket Adapter Bit Set ModelNumber : 1/2 -3 NumberOfBoxes : 1 NumberOfItems : 3 NumberOfPieces : 3 PackageLevel : unit PartNumber : 1/2 -3 ProductDescription : Brand Pgroup Size 3PCS Extension Bars Material Chrome Vanadium Steel Finish Type Black Phosphate Finish,Corrosion Resistance Number of Pieces 3 ProductSiteLaunchDate : 2023-09-11T05:58:38.954Z Size : Extension Bar Set Style : SAE Hex SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 6 UnspscCode : 27112800