[Size]: 1/2"; Accuracy: 0.0002".

[Material]: Made of high-quality alloy steel, precision ground, and hardened.

[Product includes]:
One pair of 1" X 6" X 1/2";
One pair of 1-1/2" X 6" X 1/2";
One Pair of 1-1/4" X 6" X 1/2";
One pair of 1-3/4" X 6" X 1-2".

[Application]: To be used in setting up work for drilling and milling.