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