The “11 Pcs” count generally breaks down as follows: Component Quantity Detail Ratchet Wrench 1 Pc A heavy-duty, reversible 1/2-inch Drive ratchet handle, often featuring a 72-tooth mechanism for fine incremental turns (allowing movement with only $5^\circ$ of arc swing). It usually has a rubber, non-slip, ergonomic handle. Sockets (Box Spanners) 9 Pcs A range of the most commonly used metric socket sizes. The typical sizes included are: 8, 10, 12, 13, 14, 15, 17, 19, and 24 mm. These cover most standard fasteners on vehicles and machinery. Extension Bar 1 Pc A 125mm (5-inch) extension rod to reach recessed bolts and nuts that the ratchet head cannot access directly. Socket Spanner Set
