Description: This feeler gauge has 32 blades in AF and MM sizes. The brass gauge is used on the reluctor air gap on electronic ignition systems where non-ferrous blades are required. Metric and imperial. Material: Stainless Steel Measurement range: 0.02-1mm Specification: Size( Lx W): Approx. 95x 13mm/ 3.74x 0.51inch Unfold Lehgth: Approx. 172mm/ 6.77inch Package Includes: 1 Set Feeler Gauge Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement