Feeler Gauge Set with Wire & Taper Gauges, Finish Unfinished, Blade Length 4 1/2 in, Blade Material Steel, Blade Style Tapered Blade, Dimension Type Inch, Included Certification None, Maximum Thickness - Inch 0.015 in, Minimum Thickness - Inch 0.002 in, Non-Marring No, Number of Feeler Blades 9, Thickness Range 0.002 in to 0.015 in, Tolerance +/-0.00025 in, Blade Width 1/4 in to 1/2 in, Color Silver