Socket wrench Proline 1/2" 12-point 21 mm, model 9052884

Proline 1/2" 12-point 21 mm socket (model 9052884) is a single replacement socket designed for use with 1/2-inch drive ratchets and handles. Made from chrome-vanadium steel and heat-treated for hardness and durability, the 12-point configuration allows fitting both hex fasteners and certain rounded heads, making alignment easier in confined spaces.

Advantages

The socket is manufactured from chrome-vanadium steel and undergoes precise hardening and tempering to ensure required hardness and resistance to wear. Its strength characteristics exceed DIN 3124 and PN-ISO 1711 standards. Edges between the contact faces are specially profiled with the PRO-DRIVE system to reduce excessive point loading and to protect fastener heads and flat edges from premature damage.

Suitable for

• Automotive maintenance and repair
• Mechanical assembly and disassembly
• General workshop and industrial maintenance
• Situations requiring a robust 21 mm 1/2" drive socket

Key specifications

• Brand: Proline
• Model / MPN: 9052884
• EAN: 4750959052884
• Drive size: 1/2" (12.7 mm)
• Socket type: 12-point (double hex)
• Socket size: 21 mm
• Material: Chrome-vanadium steel
• Standards: Exceeds DIN 3124 and PN-ISO 1711

How to use

Select a compatible 1/2" drive ratchet or handle, attach the 21 mm 12-point socket to the drive square until it clicks or seats securely, then place the socket onto the fastener and apply torque via the ratchet, extension or breaker bar as required. For best fit, align the 12-point socket with the fastener profile and avoid slipping by ensuring full engagement before applying force.

Usage recommendations

Use with appropriate torque limits for the fastener and apply steady force. Inspect the socket and fastener for wear before use. Store in a dry place to avoid corrosion and replace damaged sockets to prevent rounded fasteners or injury.