6-12mm Stud Puller Socket

When a stud seizes in an engine block, exhaust manifold, or suspension knuckle, the right extraction tools make the difference between a ten-minute fix and a hours-long ordeal involving drills and taps. This Teng Tools 12 mm socket is designed from the ground up to grip damaged, corroded, or protruding studs and turn them out cleanly.

The aggressive internal profile bites into the stud as torque is applied, converting rotational force into reliable grip instead of the slipping and rounding that happens with conventional sockets or adjustable pliers. Once engaged, the socket holds the stud firmly through the full rotation, giving you smooth, controlled removal.

Sized at 12 mm and built with a half-inch square drive, this tool connects directly to the ratchets, breaker bars, and impact wrenches that professional technicians already keep on the cart. The larger drive delivers the mechanical advantage that seized-fastener work demands, and it handles the shock loads of impact driving without complaint.

Sold individually, this socket lets you stock the specific size your shop uses most or replace a worn piece without buying an entire kit over again. Whether you work on import engines with metric exhaust studs, heavy equipment with corroded mounting hardware, or classic trucks whose original fasteners have not moved in decades, a purpose-built extractor socket in the correct metric size belongs in your top drawer.