Feeler Gauge, Thickness 0.0040 in, Blade Material Steel, Non-Magnetic No, Blade Style Long Blade/ WIDTH: 0.500 INCHES NOMINAL LENGTH: 12.000 INCHES NOMINAL HOLDER: NOT INCLUDED END SHAPE AND LOCATION: ROUND BOTH ENDS MEASUREMENT SYSTEM: ENGLISH END HOLE: INCLUDED SHAPE: STRAIGHT THICKNESS: 0.0040 INCHES