81 PCS Ceramic Gage Block Set Grade 1, NIST Equivalent certificate #702-CC01
Certificate equivalent to NIST traceable certs. All block mirror polished, with serial number and size.
36 PCS PRECISION GAGE BLOCK SET W. NIST Equivalent certificate,GRADE B, #702-36B
36pcs/set gage block set inch sizes with NIST equivalent certs, deviation micro-inch 0.000001 inch. Include:2 blocks: 0.05″, 0.10″9 blocks: 0.1001 thru 0.1009″ by step 0.0001″9 blocks: 0.101 thru 0.109″ by step 0.001″9 blocks: 0.110 thru 0.190″ by step 0.01″4 blocks: 0.2, 0.3, 0.4, 0.5″3 blocks: 1.000, 2.000, 4.000Fitted in strong and deluxe indexed wooden box.