Long-Blade Feeler Gauge Set, Finish Uncoated, Blade Length 12 in, Blade Material Steel, Blade Style Long Blade, Dimension Type Inch, Included Certification Not Applicable, Maximum Thickness - Inch 0.015 in, Minimum Thickness - Inch 0.002 in, Non-Marring No, Number of Feeler Blades 8, Thickness Range 0.002 in to 0.015 in, Tolerance +/-0.00025 in