Precise Square Gage Block Set, Grade B – SBS-81B

• For those who need a value-priced set.
• All blocks are manufactured to the same high standards as our premium sets.
• Each set is provided in a fitted wood case.
• Each set is supplied with a certificate guaranteeing that each block is manufactured to meet or exceed Federal Spec GGG-G-15C, and is within the grade B tolerance (+.000050).This certificate does not show the individual deviation of each blocks.

See all Precise Square Gage Block Sets