Comparison : Item # F-1, 0.001 Inch (in) Thickness Steel Feeler Gage Strip
Item # F-1X, 0.0015 Inch (in) Thickness Steel Feeler Gage Strip
Item # F-2, 0.002 Inch (in) Thickness Steel Feeler Gage Strip
Item # F-2X, 0.0025 Inch (in) Thickness Steel Feeler Gage Strip
Item # F-3, 0.003 Inch (in) Thickness Steel Feeler Gage Strip