SPI 1-2-3 Block Set - 13-670-5
Hardened steel to RC 55-60, ground to surface finish 6-16 microinches.
Matched 1-2-3 Blocks
- Squareness of all sides within 0.0001"
per inch on 1-2-3 Blocks, 0.0003"
per inch on 2-3-4 Blocks. - Five tapped holes (3⁄8"-16)
18 untapped holes (0.340" dia.).
0.0001 Squareness Per Inch, Hardened Steel, 1-2-3 Block with 23 Hole Setup Block
| Type | 1-2-3 |
| Number of Pieces | 2 |
| Fractional Height | 3 |
| Overall Length | 2 |
| Overall Width (Inch) | 1 |
| Squareness | 0.0001, 0.0003 |
| Tapped Hole Size | 3/8-16 |
| SPI Part Number | 13-670-5 |
1-2-3 Block Set
