Material:
Quick size find, more practical and durable,CNC Machined from 6061 Aluminum with a Protective Anodized Finish Laser etched markings wont fade or get scratched off.

METRIC THREAD SIZES: -M4 x 0.7 -M5 x 0.8 -M6 x 1.0 -M7 x 1.0 -M8 x 1.0 -M8 x 1.25 -M10 x 1.0 -M10 x 1.25 -M10 x 1.5 -M12 x 1.25 -M12 x 1.5 -M12 x 1.75 -M14 x 1.5 -M14 x 2.0

IMPERIAL THREAD SIZES: -#6 – 32 Fine -#8 – 32 Fine -#10 – 24 Coarse -#10 – 32 Fine -1/4 – 20 Coarse -1/4 – 28 Fine -5/16 – 18 Coarse -5/16 – 24 Fine -3/8 – 16 Coarse -3/8 – 24 Fine -7/16 – 14 Coarse -7/16 – 20 Fine -1/2 - 13 Coarse -1/2 – 20 Fine Ruler With Inches And Centimeters On Both Sides.

Features:

This product distinguishes between similar inch and metric threads.

The rust-proof steel thread column is firmly embedded in the blind hole on the identification gauge, and the back of the plate is smooth and beautiful.

All text signs are laser engraved, friction-resistant, clear and easy to identify.

Edge Ruler Design: The thread checker gauge has inch and centimeters scales on its edges,Help you quickly and accurately measure the length of bolts, screws, nuts, washers, saving you a lot of time and effort and increasing your work efficiency.

Easy To Hang: The thread check gauge has four removable plastic support feet.