Socket Key 1/2" 12-point 17mm Proline 9052839 — 1/2-inch drive, 12-point, 17 mm

Socket key 1/2" 12-point 17 mm Proline 9052839 is a 1/2-inch drive, 12-point socket designed for engagement with 17 mm 12-point fasteners. Manufactured from chrome-vanadium steel and subjected to controlled hardening and tempering, this 17 mm socket offers hardness and durability that exceed DIN 3124 and PN-ISO 1711 requirements. The socket is compatible with standard 1/2" drive ratchets and breaker bars for automotive, industrial and general workshop use.

Advantages

The Proline 9052839 socket is produced from chrome-vanadium steel with precision heat treatment to ensure long service life and reliable mechanical properties. Its specially profiled edges between the wrench faces implement the PRO-DRIVE system to reduce concentrated point loads on fastener corners, improving grip and decreasing the risk of rounding. The design also helps protect the flat edges of bolt and nut heads from excessive wear.

Suitable for

• Automotive repair and maintenance tasks involving 17 mm 12-point fasteners
• Industrial assembly and disassembly where a 1/2" drive is required
• General workshop use with 1/2" ratchets and breaker bars

Key specifications

• Manufacturer: Proline
• Model / MPN: 9052839
• EAN: 4750959052839
• Drive size: 1/2" (12.7 mm)
• Profile: 12-point
• Socket size: 17 mm
• Material: chrome-vanadium steel
• Standards: exceeds DIN 3124 and PN-ISO 1711 requirements

How to use

Select the 17 mm 12-point Proline 9052839 socket and attach it to a compatible 1/2" drive ratchet, breaker bar or torque wrench. Place the socket squarely onto the fastener head and apply controlled torque. Use steady, even force to avoid slipping and ensure the PRO-DRIVE profile engages the fastener corners correctly. Follow any torque specifications provided for the fastener to avoid over-tightening.

Usage recommendations

For best results, keep the socket clean and lightly oiled to prevent corrosion. Inspect the socket and fastener for damage before use; replace the socket if rounded or cracked. Use appropriate torque tools and avoid impact tools unless the socket is rated for impact use.