Specification Brand : uxcell BulletPoint1 : [Size] - 1/2" square drive, 21mm slotted 6-point socket, 200mm (8") total length. BulletPoint2 : [Extra Long Depth] - Provide more space to accommodate longer bolts and a wider range of applications to convenience your work. BulletPoint3 : [CR-V Steel] - Made of heat-treated chrome vanadium steel to improve strength and durability, with polished and electrophoresis finish to prevent rust and corrosion. BulletPoint4 : [Radius Corner Design] - Radius corners prevent fastener wear and increase torque on fasteners by placing force on fastener's flat sides, rather than fastener corners. BulletPoint5 : [Pin Hole] - Individual pinhole base design adds extra security by placing in a locking pin for stability when exerting strong torque motion. BulletPoint6 : Premium S2 alloy steel bits and chrome vanadium sockets BulletPoint7 : Meets or exceeds ANSI standards Lifetime warranty Color : Black CompatibleFastenerDescription : 0.5 inch DriveSystem : Square DriveSystem1 : Square DriveSystem2 : Slotted ExternallyAssignedProductIdentifier : 4953488155808 ExternallyAssignedProductIdentifier1 : 092644658297 ExternallyAssignedProductIdentifier2 : 0092644658297 ExternallyAssignedProductIdentifier3 : 00092644658297 FinishType : Electrophoresis Finish,Polished,Corrosion Resistance IncludedComponents : (1) TEKTON 1/4 Inch Drive x 3 Inch Locking Extension | SHA01203 ItemDisplayWeight : 0.2 pounds ItemLength : 8 inches ItemName : uxcell 1/2" Drive by 21mm Slotted Deep Impact Socket, CR-V Steel 8" Length, 6-Point Metric Sizes ItemPackageDimensions_Height : 19.6 centimeters ItemPackageDimensions_Length : 4.7 centimeters ItemPackageDimensions_Width : 12.4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : triple-square-drive-sockets Manufacturer : uxcell Material : Chrome Vanadium Steel Material1 : S2 Steel Material2 : Chrome Vanadium Steel MeasurementSystem : Metric MeasurementSystem1 : metric MeasurementSystem2 : inch ModelName : Deep Impact Socket ModelNumber : a21110300ux0871 NumberOfBoxes : 1 NumberOfItems : 2 NumberOfPieces : 1 PackageLevel : unit PartNumber : a21110300ux0871 PowerSourceType : hand_powered ProductDescription : 1. Made of chromium vanadium steel, integral heat treatment, strong impact force, high torque and good toughness. 2. Electrophoresis surface treatment, not easy to rust and corrosion resistance. 3. Has a 6-point opening, it can fit tightly to the hexagon of the fastener head so that the maximum torque can be applied without slipping. 4. To prevent round-off under stress, it grips the flat sides of the fastener head rather than the corners. 5. Impact socket features an alignment slot, good for hardware installation and removal. 6. The through-hole in the drive end locks onto the tang of impact wrenches or drivers so it won't fall off or stick on fastener heads. 7. Thicken-wall, electric wrench is available. 8. For disassembly and tightening of wing head bolts and nuts, especially suitable for requiring large torque and narrow space. The product has no insulation properties and is not suitable for electrical environments.