HIGH QUALITY: This valve adjustment tool is made of manganese steel, very hard material, wear-resistant and durable, not easy to deform, can be used for a long time, very maintenance workers and surveyors use it in different situations. Precise measurement: the thickness gauge contains measuring steel plates of different sizes, and the thickness of each steel plate is made precisely, which can be applied to different distances under different conditions and can measure different spacing distances accurately. It has high precision and can improve the accuracy of your work! Clear Labeling: The data on each part of this valve setting tool is very clearly labeled and not worn. When you measure, you can see clearly at a glance, reduce work mistakes and improve your work efficiency! Widely Used: These thickness gauges can be widely used in a variety of automotive parts, valve sets and advanced clearances, from musical instruments to electric motors. These feeler gauges are very suitable for