6 X 6 in. Sine Plate & 81 Piece Gage Block Set

HHIP 6 X 6 in. Sine Plate & 81 Piece Gage Block Set The since plate is made of high grade tool steel that is hardened and precision ground to HRC 5558. The plate has two hardened side rails and one locking strap. The gage block set is grade AS-2B +/-50 millionths. These blocks Meet or exceed Federal GGG-G-15C. They are made of the highest quality tool steel with a surface hardness of HRC 64. The blocks are supplied in a fitted case with sizes labeled. Blocks included in set are 9 blocks that are .1001 in. thru .1009 in. with a step of .0001 in., 49 blocks that are .101 in. thru .149 in. with a step of .001 in., 19 blocks that are .050 in. thru .950 in. with a step of .050 in. and 4 blocks that are 1.000 in. thru 4.000 in. with a step of 1.000 in..