Pro Grade 1 2 3 Block Set With 23 Holes For Ultra Precision Machining Finishing Clamping And Fixturing Heavy Duty Tool Steel Construction 0.0002 Inch Accuracy Built For Industrial Milling And Machinist Work
✔️ 23-Hole design with 5 threaded 3/8-16 holes for secure clamping
This premium-grade 1-2-3 block set provides a stable, accurate reference surface for layout, setup, and inspection in milling, drilling, and finishing tasks in machine shops and industrial environments.
✅ Premium tool steel construction with precision-ground surfaces on all six sides
✅ 0.0002 inch accuracy across squareness and flatness
✅ 23-Hole design includes 5 threaded 3/8-16 holes for secure clamping
✅ 18 untapped holes for versatile fixturing options
✅ Suitable as a reliable reference for layout, setup, and inspection
💡 What is a precision 1-2-3 block used for in machining and fixturing? A handy reference for layout, setup, and inspection across many projects.
- layout and alignment reference in milling and drilling operations
- repeatable squareness and flatness for fixturing accuracy
- supports clamp-based setups with compatible tooling