NEO TOOLS 1/2 Inch Drive Long Spline Socket Set, 8-Piece, M5-M18, Chrome Vanadium Steel, DIN 3121

Forged from high-strength chrome vanadium steel with a polished chrome-plated finish, this 8-piece long spline socket set delivers exceptional corrosion resistance and impact durability for professional automotive and mechanical work. The 1/2-inch drive (12.7 mm) ensures compatibility with standard ratchets and breaker bars, while the long-reach design provides access to recessed multi-point fasteners.

Overview

The NEO TOOLS TOP-08-650 set includes eight long spline sockets covering metric sizes M5, M6, M8, M10, M12, M14, M16, and M18. Spline (XZN/triple square) profiles grip fasteners securely, reducing the risk of rounding under high torque. Each socket meets DIN 3121 drive standards, guaranteeing a precise fit on 1/2-inch square drives. The set is organized on a socket rail for convenient storage and quick size identification.

What stands out

• Long-reach design for deep-set fasteners
• Chrome vanadium steel construction for high strength
• Polished chrome finish resists corrosion
• Includes eight common metric spline sizes
• Complies with DIN 3121 for drive accuracy
• Supplied on a socket rail for organization

Technical details

• Drive size: 1/2 inch (12.7 mm)
• Socket type: Spline (XZN / triple square)
• Socket length: Long
• Number of pieces: 8
• Material: Chrome vanadium steel (CrV)
• Finish: Polished, chrome plated
• Sizes included: M5, M6, M8, M10, M12, M14, M16, M18
• Standard compliance: DIN 3121
• Application: Professional, automotive, mechanical
• Packaging: Socket rail / holder
• Corrosion resistance: Yes
• Durability: High-strength, impact-resistant

Our verdict

A professional-grade long spline socket set that combines rugged chrome vanadium construction with a comprehensive range of metric sizes. The long-reach design and DIN 3121 compliance make it a reliable choice for demanding fastener access and high-torque applications.