Proline Socket Key 1/4" 12 mm (model 9017647) — socket driver accessory

Proline Socket Key 1/4" 12 mm (model 9017647) is a socket-style driver accessory designed for use with 1/4" drive bit holders and ratchets. Made for tightening and loosening 12 mm nuts and bolts, the 12 mm socket combines a compact 1/4" interface with a chrome‑vanadium steel construction that meets robust durability requirements.

Advantages

The socket is manufactured from chrome‑vanadium steel and subjected to controlled hardening and tempering to ensure appropriate hardness and strength. Its durability properties exceed DIN 3124 and PN‑ISO 1711 requirements. The socket features specially profiled contact faces (PRO‑DRIVE system) to reduce excessive point loading and protect fastener heads and flat surfaces from damage.

Suitable for

• Tightening and loosening 12 mm nuts and bolts
• Use with 1/4" drive ratchets and bit holders
• Assembly, maintenance, and repair tasks in mechanical and domestic applications

Key specifications

• Model: 9017647
• Drive size: 1/4"
• Socket size: 12 mm
• Material: chrome‑vanadium steel
• Standards: durability exceeding DIN 3124 and PN‑ISO 1711
• Feature: PRO‑DRIVE profiled contact faces
• EAN: 4750959017647

How to use

Select a compatible 1/4" drive ratchet or bit holder, attach the 12 mm Proline socket to the drive, place the socket over the nut or bolt head, and apply torque in the required direction to tighten or loosen the fastener. Ensure the socket fully engages the fastener head before applying force.

Usage recommendations

Use the socket with tools rated for 1/4" drive. Avoid applying excessive impact or torque beyond tool and fastener ratings. Keep the socket clean and lightly lubricated to prevent corrosion; store in a dry place.