Socket impact 1/2" 21 mm long, NEO tools 12-321

Impact socket 1/2" 21 mm long from NEO tools is a long, impact-rated socket designed for use with 1/2" square-drive impact wrenches and drivers. The 21 mm hex opening fits standard metric hex fasteners and bolts while the extended length provides extra reach for recessed or hard-to-access nuts. Constructed to withstand the torque impulses of pneumatic and electric impact tools, this socket is intended for professional and DIY maintenance tasks in automotive and industrial environments.

Advantages

This impact socket offers impact-rated strength suitable for repeated use with pneumatic and electric impact wrenches. The long 21 mm design increases access to recessed fasteners without compromising engagement on the hex head. The 1/2" square-drive interface ensures compatibility with common impact tool sets and provides secure attachment during high-torque operations. The socket's geometry is optimized to reduce rounding of fastener edges under heavy loads.

Suitable for

• Automotive repair and wheel maintenance
• Industrial and machinery maintenance
• Assembly and disassembly of bolted connections in tight or recessed spaces
• Use with pneumatic or electric impact wrenches and drivers

Key specifications

• Drive size: 1/2" (square drive)
• Socket size: 21 mm hex
• Length: long profile for extended reach
• Intended use: impact-rated for pneumatic and electric impact tools
• Compatibility: fits standard metric hex fasteners

How to use

Select the 21 mm socket and securely attach it to a compatible 1/2" drive impact wrench or extension. Place the socket over the hex fastener ensuring full seating on the fastener head before applying torque. Operate the impact tool following the tool manufacturer's instructions, using controlled bursts where appropriate to avoid over-torquing. After use, inspect the socket for deformation or wear and store it in a dry tool case or rack.

Usage recommendations

Use this impact socket only with tools and accessories rated for impact service. Avoid using it with high-speed non-impact drivers or on rounded/damaged fasteners. Regularly check the socket for cracks, burrs, or excessive wear and replace it if any damage is found to maintain safe operation.