50-271-6 SPI Matched Pair of Black Granite V-Blocks - Universal Type: 2" x 2" x 2-1/2"
The SPI 50-271-6 Black Granite V-Blocks have the following specifications:
Features:
SPI Black Granite V-Blocks - Universal Type - Laboratory Grade AA +/- .000050"
SPI Black Granite V-Blocks - Economy Type - Laboratory Grade AA +/- .000050"
SPI Black Granite V-Blocks - Universal Type - Inspection Grade A +/- .0001"
SPI Black Granite V-Blocks - Economy Type - Inspection Grade A +/- .0001"