• Individual serial numbers on each block, regardless of grade
• A complete certificate of calibration traceable to the N.I.S.T.
• or P.T.B. showing the deviation of each block
• Mirror polished surfaces provide superior wringing characteristics
• 81 (ASME) blocks per set

Blocks in Set

• 1 Block: 0.050"
• 10 Blocks: 0.1000"-0.1009" x 0.0001" step
• 49 Blocks: 0.101"-0.149" x 0.001" step
• 17 Blocks: 0.150"-0.950" x 0.050" step
• 4 Blocks: 1.000"-4.000" x 1.000" step