Klann Tools -4021-3312 Socket Insert 12mm Hex 1/2" Drive 140mm Long

The Klann Tools -4021-3312 is a professional-grade socket insert designed for precision fastening applications. This specialized tool features a 12mm hexagonal bit with a 1/2-inch drive connection, providing excellent torque transfer for both removal and installation of hex fasteners.

Key Features:

• 12mm hex bit size for common metric fasteners
• 1/2-inch drive compatibility fits standard ratchets and impact wrenches
• Extended 140mm (5.5-inch) length provides access to recessed fasteners
• Hardened steel construction for durability and long service life
• Chrome finish resists corrosion and allows easy cleaning

Ideal for automotive, motorcycle, and general mechanical repair work where extended reach is required. The socket insert design allows quick bit changes while maintaining the strength of a traditional socket.