Ignition Wire Feeler Gauge Set Finish Unfinished Blade Length 1 3/4 in Blade Material Steel Blade Style Short Blade Dimension Type Inch Included Certification None Maximum Thickness - Inch 0.040 in Minimum Thickness - Inch 0.013 in Non-Marring No Number of Feeler Blades 10 Thickness Range 0.013 in to 0.04 in Blade Width 1/4 in Color Silver Holder Material Steel Included Blades 0.013 0.015 0.017 0.018 0.02 0.025 0.03 0.032 0.035 0.04 Locking Device Yes