Powerbuilt 24-Blade Combo Tune-Up Gauge – 648518

For measuring a variety of clearances. Gauge set containsflat and wire loop blades, non-magnetic brass blades andspark plug gap adjusting tool. Steel blades include:0.010, 0.012, 0.015, 0.016, 0.017, 0.018, 0.019, 0.020,0.022, 0.024, 0.025, 0.026. Brass blades include: 0.006,0.008, 0.010, 0.012, 0.014, 0.016. Wire loop bladesinclude: 0.025, 0.030, 0.034, 0.035, 0.040, 0.045. Flatblades have metric and standard measurements onblades. Meets Fed Spec. GGG-G-17c.