Crack measure, linear scale with light-interval scale

Crack measurement gauge using a stepped scale type with easy-to-see 1 mm graduations.
[Features]
· 0.3 mm, which is a rough guideline for the crack width that can potentially lead to defects, is marked in red.
· The straight ruler on the back surface is an easy-to-see stepped scale type with a 1 mm scale.
· Range for Crack Measurement: 0.1-2.0 mm.
· Measurement range of straight ruler: 0 to 150 mm.
· Silver finish.
[Applications]
· Measurement of cracks in wall surfaces, foundations, etc.