When you purchase feeler gauges, you will be concerned about the quality of the feeler blade. When you purchase from Eastern Gage, you can be certain that your feeler blade is of the highest quality, made from high carbon steel. These are stainless steel blades, constructed from 300 series stainless steel. This type of steel is resistant to both wear and corrosion, which is incredibly important. Accuracy is also of vital importance, and these feeler blades retain their accuracy, due in large part to their superior construction. When quality and accuracy matter, Eastern Gage is the answer for all of your feeler blade needs.