81 PCS/SET SQUARE GAGE BLOCK SET w.NIST Equivalent certificate, GRADE B
- 81 PCS/SET SQUARE GAGE BLOCK SET w.NIST Equivalent certificate, GRADE B.
- Description: 81 pcs/set steel precision SQUARE gage block set, grade B--w. tollerance of 50 millionth of inch. All block mirror polished, with serial number and size, WITH GAGE HOLE Complete with NIST equivalent certificate of calibration showing deviation of each block. Meets or exceed Fed. Spec. GGG-G-15C and Conform to MIL-STDD-45662A.
- 9 blocks: .1001" - .1009" in .0001" steps 49 blocks: .101" - .149" in .001" steps 19 blocks: .050" - .950" in .050" steps 4 blocks: 1.000" - 4.000" in 1.000" steps Fitted in heavy duty and precision made wooden box..