Measuring blade gauge: 
Made of 65 manganese steel, each measuring feeler gauge has 16 blades thickness; Foldable, easy and convenient to take and store. 
The gap measuring tool is flexible so it is easy to get into hard to reach places. 
The bundle of blades are able to be kept together so you can quickly pick the gauge you need or you can unscrew the finger nut and take the feeler out that you need to use so you do not have to wield the whole set. 

2 Different units of measuring: 
Dual marked metric and imperial, 0.005/ 0.127 - 0.02/ 0.508 mm, the numbers of size are etched into feeler gauge for easy identification. 

16 Different metric sizes (mm): 
0.127 mm, 0.152 mm, 0.178 mm, 0.203 mm, 0.229 mm, 0.254 mm, 0.279 mm, 0.305 mm, 0.330 mm, 0.356 mm, 0.381 mm, 0.406 mm, 0.432 mm, 0.457 mm, 0.483 mm, 0.508 mm 

16 Different imperial sizes (inch): 
0.005, 0.006, 0.007, 0 .008, 0.009, 0.010, 0.011, 0.012, 0.013, 0.014, 0.015, 0.016, 0.017, 0.018, 0.019, 0.020 inches 

Easy to use: 
The blade protector has a thumb notch to aid in removal of blades, easy to use. 

Wide application: 
They can slide in and make the measurement easily and quickly; Be applied for many different things, such as setting lifter, sparking plug, points gap and so on. 

Specifications: 
Measuring range: 0.005/ 0.127 - 0.02 /0.508 mm 
Material: 65 manganese steel 
Blades: 16 pieces 

Package includes: 
1 x Feeler gauge