Ultra Precision 1 2 3 Block Set Hardened Steel With 23 Holes And 2 Inch Length 1 Inch Width 3 Inch Height Two Pairs Tapped Holes 3 8 16 UNC 0.0002 Inch Tolerance For Ultra Tight Machining And Repeatable Setup

Precision Hardened 1-2-3 Block Set with 23 Holes, 2in L
✔️ 2in L x 1in W x 3in H; 23 holes; 3/8-16UNC; 0.0002in tol; pack 2

These precision 1-2-3 blocks in hardened steel serve as reliable reference tools for squaring, fixture alignment, and setup reproducibility in milling, drilling, and inspection work cells.

✅ 23 holes for flexible fixture layout
✅ 2in length x 1in width x 3in height in a compact form
✅ Hardened steel construction for long-lasting accuracy
✅ 0.0002in tolerance enables repeatable setups
✅ Pack of 2 blocks included for paired machining setups

💡 What is a precision 1-2-3 block used for in a machining setup?

These handy blocks serve as repeatable reference tools for squaring and positioning parts in milling, drilling, and inspection tasks.

• Used to square and locate workpieces in mills and drill presses.
• The 23-hole pattern supports flexible fixturing with tapped holes (3/8-16 UNC).
• 0.0002 inch tolerance ensures consistent setups across runs.