9Pcs Combination Wrench(Metric)

A 9-piece combination wrench set refers to a set of wrenches that includes nine different sizes, typically used for tightening or loosening nuts and bolts. The “combination” aspect of these wrenches means they have an open end on one side and a closed (or box) end on the other side.

The set you mentioned is specifically for metric measurements, which means the sizes are based on the metric system of measurement. Metric combination wrench sets are commonly used in automotive repair, mechanical work, and various other applications where metric-sized fasteners are encountered.