The Snap-on V-21A Valve Adjusting Tool is a vintage hand tool made in the USA. It is designed specifically for adjusting valves and is a high-quality tool produced by Snap-on, a trusted brand in automotive tools. The tool comes with a unique manufacturer part number V-21A and is a must-have for automotive enthusiasts looking for reliable and durable hand tools. This versatile tool is a valuable addition to any collection of automotive tools and supplies.