Matched pairs
1-2-3 blocks are a necessity for every machine shop, for set ups on machines and measuring parts on the granite table.
Specifications:
- Precision ground and case hardened on all six sides
- Hardness: 56 – 60 RC
- Parallelism: 0.0002″
- Squareness on all sides within 0.0001″
- Matched accuracy of 0.0002″
- Accuracy of 0.0003″ per inch
- 23 holes: 5 tapped (3/8″- 16), 18 untapped
