Tender For supply of set of items for rockwellhardnesstester. set consists of 5 items with nabl calibration certifi cate. (1) diamond indenter for hrc scale with angle of 120 degree and radius of curvature at the tip of 0.2 mm as per is:1586(pt-1/2018 clause 5.2)-3 nos./set.(2) standard test block (steel) in the range of hrb 80 t o 95- 1 no./set, (3) standard test block (steel) in the range of hrc 25 to 30- 1 no./set, (4) standard test bl ock (steel) in the range of hrc 55 to 60- 1 no./set (5) 1/16-inch steel ball indenter for hrb scale- 03 nos./s et [ warranty period: 30 months after the date of delivery ]