Socket Key Proline Gala 1/2" Extended 21 mm

Socket Key Proline Gala 1/2" Extended 21 mm is an extended 1/2-inch drive socket designed to reach recessed nuts and bolts. Manufactured from chrome-vanadium steel and subjected to controlled hardening and tempering, this 21 mm socket delivers the hardness and durability required for professional use. The socket meets and exceeds the strength requirements of applicable standards and is intended for use with standard 1/2" drive tools in automotive, mechanical and maintenance tasks.

Advantages

The chrome-vanadium construction and precise heat treatment ensure high hardness and long service life. The extended length improves access to hard-to-reach fasteners while preserving torque transfer. Edges between the working faces are specially profiled with the PRO-DRIVE system to reduce concentrated point loads, protecting screw heads and flat edges from excessive wear and damage.

Suitable for

• Automotive repair and maintenance
• Mechanical assembly and disassembly
• General workshop and maintenance tasks requiring extra reach

Key specifications

• Drive size: 1/2"
• Socket size: 21 mm
• Material: chrome-vanadium steel
• Design: extended length
• Protective profiling: PRO-DRIVE edge profiling
• Manufacturer part number (MPN): 9034644
• EAN: 4750959034644

How to use

Attach the Socket Key Proline Gala 1/2" Extended 21 mm to a compatible 1/2" drive ratchet, breaker bar, or extension. Position the socket fully onto the fastener head to ensure a secure fit and apply steady torque. For recessed or deep-set nuts, use the extended length to access the fastener while maintaining tool alignment. Inspect the fastener engagement before applying high torque to avoid slipping.

Usage recommendations

Use with tools matching the 1/2" drive standard and with fasteners of the correct 21 mm size. Maintain the socket clean and free of debris; avoid excessive impact on worn fasteners. Store in a dry place to prevent surface corrosion and periodically inspect for wear or damage.