81 PIECE RECTANGULAR STEEL GRADE B GAGE BLOCK SET (4101-0022)

81 Piece Rectangular Steel Gage Block Set Grade AS-2(B) +/-50 millionths Meets or exceeds Federal GGG-G-15C. Made of the highest quality tool steel. Surface hardness is HRC 64. Supplied with fitted case with sizes labeled. Blocks included in set are 9 blocks that are .1001" thru .1009" with a step of .0001", 49 blocks that are .101" thru .149" with a step of .001", 19 blocks that are .050" thru .950" with a step of .050" and 4 blocks that are 1.000" thru 4.000" with a step of 1.000". Shipping Weight: 7 lbs