SPI Top Quality 2-3-4 Block Set - 52-771-3
- Supplied in Matched Pairs.
- Precision ground and case hardened on all six sides.
- Ideal for precision set up and layout work. Hardness: 56 – 60 RC.
- Feature 23 holes: 5 are tapped 3⁄8 – 16, the other 18 are untapped.
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SPI Top Quality 2-3-4 Block Set
