-Made of high quality steel

-Hardness: HRC55-62

-Accuracy: 0.0002" Parallelism in height, ±0.0002" to size in height

-Includes 10 pairs: 6"(Long) x 1/8"(Thickness) x High:1/2",3/4",5/8",7/8",1",1-1/8",1-1/4",1-3/8",1-1/2",1-5/8"