Product Features:For use with newer autos with high energy engines.Accurately set spark plugs with electrode tool included.8 durable round wire blades in decimal and metric sizes.SAE Sizes: .025, .030, .035, .040, .044, .054, .060 and .080Metric Sizes: .635, .762, .889, 1.01, 1.11, 1.37, 1.52 and 2.03mm
