The Ken-Tool Tire Valve Installation Tool, No. 29850, assists with snap-in rubber tire valve stems for automotive, light truck and trailer wheels. The tool is made from cadmium-plated, high-carbon steel, and the handle is made from a slip-resistant polymer. The tool features a notched polymer rim guard to protect the wheel rim from damage, and can be used on aluminum alloy and chrome-plated wheels. The rim guard features five fulcrum notches to provide the correct leverage point to pull and seat the tire valve in a wheel. Additionally, the 9.6-oz, 12" tool has a fully pivoting head to ensure the correct stem angle as it is pulled into position on the rim. This tool is not for use on threaded steel or brass valve stems on heavy duty trucks and trailers.