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 0.001 in, Finish Polished, Hardness RC 48-62, Markings Inch with Metric Equivalent, Tolerance +/-0.00012 in