Specification Brand : WORKPRO BulletPoint1 : Premium CR-MO: WORKPRO Impact Extension Bar Sets are made from premium chrome molybdenum steel by heat treatment for high hardness and good toughness, the surface is coated with Manganese Phosphate to prevent rust and corrosion for durability, and Laser-etched brand and size words are easy to read. BulletPoint2 : Different and Clear Sizes: This 1/2" extension set includes three commonly used sizes: 3, 6, and 8-inch, which can reach into the narrow range and meet your needs in different usage scenarios, making your work easier and avoiding injury. BulletPoint3 : High Compatibility: whether it is electric, pneumatic or hand wrench, as long as it meets 1/2 drive, this socket extension set can be compatible with it to meet your different needs in automotive, chemical and assembly fields. BulletPoint4 : Comfortable & Ergonomic Design: The drive end has a multi-purpose pinhole to ensure the extension bar can be firmly seated on the drive handle. The end of the impact driver extension has a ball stud that forms a locking mechanism that prevents the extension bar from falling, increasing its stability and safety. BulletPoint5 : Access Hard-to-Reach Fasteners with Ease: These impact extension bars are used with different impact wrenches to increase their length, and access to hard-to-reach fasteners, making you're easily taking all the fuss out of auto repair tasks. Color : Black CompatibleFastenerDescription : 0.5 inch CompatibleMaterial : Metal DriveSystem : 1/4",3/8",1/2" ExternallyAssignedProductIdentifier1 : 0820909779575 ExternallyAssignedProductIdentifier2 : 820909779575 ExternallyAssignedProductIdentifier3 : 0838780001180 ExternallyAssignedProductIdentifier4 : 0013222105279 ExternallyAssignedProductIdentifier5 : 00838780001180 FinishType : Manganese Phosphate Finish ItemDisplayWeight : 315 grams ItemLength : 8 inches ItemName : WORKPRO 1/2-Inch Drive Impact Extension Bar Sets, 3 Piece-3, 6, 8 Inch Socket Extension, Hardened and Heat Treated CR-MO Steel with Black Manganese Phosphate Finish ItemPackageDimensions_Height : 22.8092 centimeters ItemPackageDimensions_Length : 3.9116 centimeters ItemPackageDimensions_Width : 6.4008 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : drive-socket-sets Manufacturer : Hang Zhou Great Star Industrial Co., Ltd. Material : Chrome Molybdenum Steel ModelName : AK730/RK ModelNumber : W074522A NumberOfItems : 3 NumberOfPieces : 3 PackageLevel : unit PartNumber : W074522AE ProductDescription : WORKPRO Impact Extension Bar Sets are made from premium chrome molybdenum steel by heat treatment for high hardness and good toughness, the surface is coated with Manganese Phosphate to prevent rust and corrosion for durability, and Laser-etched brand and size words are easy to read. ProductSiteLaunchDate : 2022-07-19T02:38:38.582Z Size : 1/2" Drive: (3", 6", 8") StreetDate : 2015-01-09T00:00:01Z Style : Compact SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1