Feeler Gauge Stock Roll Blade Material Steel Blade Style Straight Blade Width 1/2 in Case Included Yes Case Type Chipboard Box Dimension Type Inch Non-Magnetic No Non-Marring No Roll Length 25 ft Thickness 0.0015 in Finish Polished Hardness RC 48-62 Markings Inch with Metric Equivalent Tolerance +/-0.00012 in