Specification Brand : MTO BulletPoint1 : Premium CR-MO Steel: Crafted from high-grade Chromium-Molybdenum (CR-MO) alloy steel, this 21mm deep impact socket outperforms standard chrome vanadium in strength and toughness. The CR-MO material resists cracking, rounding, or deformation under heavy torque from impact wrenches, making it ideal for automotive repairs, industrial machinery, or construction tasks BulletPoint2 : 6-Point Anti-Slip Design: 6-point hex design maximizes contact with fasteners, eliminating slippage and stripping even under extreme torque. Unlike 12-point sockets, this 21mm socket ensures a secure fit on worn or rusted bolts, perfect for high-vibration jobs like truck repairs, motorcycle maintenance, or heavy equipment disassembly. Engineered for precision, it protects both your tools and hardware BulletPoint3 : Laser-Etched Size Markings: Featuring permanent laser-etched markings, this 21mm deep socket allows instant size recognition in low-light garages or cluttered workspaces. The wear-resistant labels won’t fade over time, unlike stamped or painted markings. A must-have for mechanics and DIYers who value efficiency during repetitive tasks with 1/2" drive tools BulletPoint4 : Coating for Rust Resistance: Protecting against corrosion, oil, and moisture, the phosphate-manganese coating extends this 21mm impact socket’s lifespan in humid workshops, outdoor job sites, or marine environments. Compared to uncoated sockets, it reduces rust-related failures by 70% and maintains smooth operation even after years of heavy use BulletPoint5 : Compatibility & Professional-Grade: Designed for mechanics, contractors, and DIY enthusiasts, this 21mm socket fits all standard 1/2" impact wrenches, ratchets, and torque tools. Its deep-well design securely grips long bolts on engines, trailers, or agricultural machinery. SAE-certified dimensions ensure vibration-resistant performance, making it a versatile upgrade for any toolbox Color : Black Oxide CompatibleFastenerDescription : Hexagonal and Square Drive Bolts DriveSystem : Square ExternallyAssignedProductIdentifier1 : 885911589369 ExternallyAssignedProductIdentifier2 : 0885911589369 ExternallyAssignedProductIdentifier3 : 00885911589369 FinishType : Black Phosphate Finish GpsrSafetyAttestation : 1 ItemLength : 0.875 inches ItemName : MTO 1/2" Drive 21mm Deep Impact Socket, 6 Pt. Metric Socket, CR-MO Steel & Anti-Corrosion Coating for Heavy-Duty Use ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 3.6068 centimeters ItemPackageDimensions_Width : 9.7028 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : square-drive-sockets Manufacturer : MTO Material : Chrome Molybdenum Steel ModelName : CMMT16063 ModelNumber : MTO-21MM NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : CMMT16063 ProductDescription : MTO 1/2" Drive 21 mm Deep 6 Point Impact Socket, Chrome Molybdenum Steel ProductSiteLaunchDate : 2024-10-25T07:24:37.824Z Size : 21 mm Style : Deep SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 27111700