Matched Pair One By Two By Three Inch Machinist Block Set With Half Inch Through Hole Hardened Steel Ground To RC 55 60 For Tight Squareness And Flatness And Accurate Setup Layouts Grinding Milling And Inspecting In The Shop

Matched Pair 1x2x3 Machinist Block Set with 1/2 Inch Hole
✔️ Two matched 1x2x3 blocks, RC 55-60, 1/2 inch hole, 0.0003 inch tolerance

These precision machinist blocks are hardened steel references used to check squareness, flatness, and accurate layouts in milling, grinding, drilling, and inspection tasks in machine shops and fabrication environments.

✅ Matched pair of 1x2x3 blocks, set includes 2 blocks for easy pairing
✅ Hardened steel, ground on all six sides to RC 55-60
✅ Through hole is 1/2" through for fast alignment
✅ Squareness, flatness and parallelism within 0.0003"
✅ Overall size within ±0.0003"

💡 What is a machinist block used for in precision shop setups? This handy tool provides a reliable reference for alignment and measurement needs. - precision reference for setup and inspection - flat, square surfaces enable repeatable milling and drilling - supports accurate fixtures, gauges, and QA checks - helps verify part squareness and flatness during milling and grinding