Material: 58% nickel-steel alloy, stainless steel with 13% chromium or pure nickel, rectangular cross section minimum dimension 20 X 10mm. Overal length 1030mm+/-1mm the graduated length shall be 1010mm, be bridght, well polished and free from surface irregularity, the vernier scale reading to read the error to the nearest of 0.1mm, the metre shall be housed in a case from suitable with handle for carrying purpose. Show More