Tool kits with combination wrenchs

Combination wrenches

— a distinctive feature of any combination wrench is the presence of two working profiles of different types on different sides of the tool. The most common combination is open-end and cap profile (see relevant paragraphs), but other combinations may be possible. Thus, the combined tool actually combines two types of keys, allowing you to combine their capabilities in one tool. The profiles of the same key are usually the same size.