81PC RECT.STEEL GAGE BLOCK SET (GRADE 3)

81 Piece Rectangular Steel Gage Block Set Grade AS-1 = Grade 3 +8/-4 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: 8 lbs