General Tools 230 Economy Feeler Gage, 26-Leaf with Metric and English Units This product is high quality product Manufactured in China This product is easy to use General Tools Feeler Gages are used for adjusting and gauging spark plugs, distributor points and valve clearances, or any other instance of measuring the space between two parts This convenient and popular Economy Series Gages provide spot-on accuracy at a competitive price This 26"Leaf Economy Feeler gage features 3 inch straight leaves etched with both Metric and English units, ranging from .0015" to .025" and .037mm to .65mm The set is housed in a protective holder to preserve the trueness of the leaf edges