Starrett Gauge Block Sets
Often used for precision layout, machine setup, and producing close-tolerance dies and fixtures, these gauge blocks are high-carbon, high-chrome steel and have excellent stability and resistance to thermal expansion.
Gauge blocks are classified by grade based on tolerance—the smaller the tolerance, the greater the accuracy. All blocks are individually numbered for recalibration at a later date.
Size refers to the distance between the block’s two measuring surfaces.
| Number of Pieces | Manufacturer Model Number | Includes | Material | Each | |
Grade 0 | |||||
|---|---|---|---|---|---|
| 9 | RS9.A1 | One block each in sizes 0.0625", 0.100", 0.125", 0.200", 0.250", 0.300", 0.500", 1.000", and 2.000" | Steel | 000000 | 0000000 |
| 34 | RS34.A1 | Nine blocks in sizes 0.1001" to 0.1009" in 0.0001" increments Nine blocks in sizes 0.101" to 0.109" in 0.001" increments Nine blocks in sizes 0.110" to 0.190" in 0.01" increments One block each in sizes 0.100", 0.200", 0.300", 0.500", 1.000", 2.000", and 4.000" | Steel | 000000 | 00000000 |
| 81 | RS81.A1 | 19 blocks in sizes 0.050" to 0.950" in 0.05" increments 49 blocks in sizes 0.101" to 0.149" in 0.001" increments Four blocks in sizes 1.000" to 4.000" in 1" increments Nine blocks in sizes 0.1001" to 0.1009" in 0.0001" increments | Steel | 000000 | 00000000 |