SPI V-Blocks, Per Matched Pair, Laboratory Grade AA, Universal Type, 3 x 3 x 3 – 50-272-4

SPI V-Blocks, Per Matched PairLaboratory Grade AA,Universal Type,3 x 3 x 3 Accuracies indicated are per 6 inches Nominal dimensions 1/8" The 90 V is centered to the parallel sides, parallel to the bottom and square to the ends On the economy models, the en