Specification Brand : uxcell BulletPoint1 : [Size] - 1/2" square drive, 21mm 6-point socket, 80mm (3.15") total length. BulletPoint2 : [Extra 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 : PEACE OF MIND - Purchase with confidence backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects BulletPoint7 : ANSI STANDARDS - Meets or exceeds the standards established by the American National Standards Institute BulletPoint8 : PROFESSIONAL GRADE - Genius Tools are designed and made for use by professional technicians and built to perform over a lifetime of heavy use. Trust Genius for a quality tool at a value cost to you Color : Multi CompatibleFastenerDescription : 0.5 inch DriveSystem : Square ExternallyAssignedProductIdentifier1 : 025141028607 ExternallyAssignedProductIdentifier2 : 0025141028607 ExternallyAssignedProductIdentifier3 : 00025141028607 ExternallyAssignedProductIdentifier4 : 0025141342710 ExternallyAssignedProductIdentifier5 : 00025141342710 FinishType : Electrophoresis Finish,Polished,Corrosion Resistance GpsrSafetyAttestation : 1 ItemDisplayWeight : 0.1 pounds ItemLength : 3.15 inches ItemName : uxcell 1/2" Drive by 21mm Deep Impact Socket, Heat-Treated CR-V Steel 3.15" Length, 6-Point Metric Sizes 2 Pcs ItemPackageDimensions_Height : 11.4 centimeters ItemPackageDimensions_Length : 2.8 centimeters ItemPackageDimensions_Width : 8.9 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : triple-square-drive-sockets Manufacturer : uxcell Material : Chrome Vanadium Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MeasurementSystem : Metric ModelName : REQUIRED ModelNumber : a21110300ux0826 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 2 PackageLevel : unit PartNumber : a21110300ux0826 Pattern : Solid 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. 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. 6. Thicken-wall, electric wrench is available. 7. For disassembly and tightening of hexagon 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.