Socket 21 mm 12-point 1/2" drive Proxxon PR23314

Proxxon 21 mm 12-point socket with 1/2" drive (model PR23314) is a hand tool designed for reliable engagement with 21 mm hex fasteners. The twelve-point geometry allows easier alignment on fastener corners in confined spaces, while the 1/2" square drive provides compatibility with common ratchets and torque wrenches. This socket is intended for repeated use in automotive maintenance, mechanical repair and light industrial assembly where secure grip and accurate torque transfer are required.

Advantages

The 12-point configuration reduces the need for exact indexing and permits engagement at multiple angles, improving accessibility in tight locations. Precision-machined internal faces deliver a close fit to hex fasteners to minimize rounding and slippage. The 1/2" drive size ensures compatibility with a wide range of ratchets and torque tools, supporting controlled tightening and loosening operations.

Suitable for

• Automotive repair tasks involving 21 mm hex nuts and bolts
• Mechanical maintenance where space is limited and quick re-indexing is beneficial
• Industrial assembly and disassembly operations requiring accurate torque application

Key specifications

• Socket size: 21 mm
• Internal profile: 12-point (double-hex) configuration
• Drive interface: 1/2" square drive
• Intended use: manual operation with ratchets and torque tools
• Typical applications: automotive, mechanical maintenance, industrial assembly

How to use

Select a compatible 1/2" drive ratchet or torque wrench and attach the socket by aligning the square drive to the socket recess until it clicks or seats securely. Position the socket over the 21 mm fastener, ensuring full engagement on the fastener corners. Apply steady torque using the ratchet or torque tool; for critical fastenings use a calibrated torque wrench and follow manufacturer torque specifications. After use, detach the socket and store it in an appropriate holder or toolbox to prevent corrosion and preserve the machined surfaces.

Usage recommendations

Use the socket with hand tools rated for the intended torque range. Avoid using damaged fasteners or worn sockets, and replace any socket showing rounded or cracked faces. For precise tightening, always use a calibrated torque wrench and observe the vehicle or equipment manufacturer's torque values.