1/2 Drive Stubby Impact Socket 10-24mm Metric

Metric fasteners in tight quarters demand a socket that is both strong enough for high-torque impact use and short enough to fit where the work actually is. This 21 mm compact socket keeps the distance between your impact gun and the fastener head to a minimum, giving you the clearance to work around frame rails, control arms, and engine accessories without pulling parts just to gain access.

The half-inch square drive is the professional standard for automotive and heavy-equipment work, so this socket connects directly to the guns and ratchets you already use. No step-down adapters, no added stack height, no wasted energy — just a solid, rigid link from the tool to the fastener.

Precision matters at every size. The DIN-standard 21 mm hex profile sits fully on the bolt head, spreading load evenly across all six flats. That reduces the corner stress that rounds fasteners and shortens tool life. When you are applying serious torque to a suspension pinch bolt or a flywheel-housing fastener, the geometry of the socket-to-bolt interface is the first line of defense against damage.

This is a single socket, not a set. It exists for the working technician who needs one specific size — a replacement for a lost favorite, a fill-in for a gap in the drawer, or a purpose-bought tool for a recurring job. Pair it with other individually available Teng Tools metric sockets to build the exact tray layout your shop requires.

Put it on the gun, get the bolt out, and move on to the next one. That is what a purpose-built compact socket is for.