10 By 6 By 1 Precision Granite Square In Black For Spot On Right Angles And Machining Accuracy, Durable Granite Block Square For Metalworking And Woodworking With One Large Face And Two Finished Edges For Tight Repeatable Measurements

Precision Granite Square 10x6x1 for Accurate 90° Machining
✔️ 10x6x1 in solid black granite, single piece, flat faces (254x152x25.4)

This precision granite square is a rigid measuring tool used to verify 90-degree angles between surfaces in metalworking and woodworking. Ground to tight accuracy, it ensures reliable squareness on X, Y, and Z axes for setup and inspection.

✅ Solid black granite block, 10 x 6 x 1 in (254 x 152 x 25.4 mm) size
✅ One large face and two finished edges, flat and square to each other
✅ 90-degree squareness tolerance ±0.0002 in (±0.0051 mm)
✅ Lightweight round hole for easier handling and reduced weight
✅ Includes manufacturer inspection certificate

💡 What is a granite precision square used for in precision machining and woodworking? This handy tool helps confirm right angle alignment and squareness during setup. - Verify X and Y axis squareness in horizontal setup - Check Z axis perpendicularity when oriented vertically - Support tight tolerances in milling, drilling, and inspection