Six By Six By Two Inch Granite Surface Plate Grade B No Ledge Built Tough For Precision Work With Ground Flatness To 0.0001 Inch Plus Certificate Of Inspection Meets Federal Spec GGG P 463C

Six by Six by Two Granite Plate, Grade B, 0.0001 in Flat
✔️ 1 pc Granite Surface Plate, Grade B, 6 x 6 x 2 in, 0 ledge

Designed as a precision reference, this granite surface plate provides a flat, stable work surface for measuring, laying out parts, inspecting assemblies, and calibrating equipment in machine shops and labs. Its non-magnetic, non-conductive nature helps protect sensitive instruments during setup.

✅ ✅ precision-ground top with ±0.0001 in flatness
✅ meets Federal Spec GGG-P-463C with certificate of inspection (not NIST traceable)
✅ 6 x 6 x 2 in size with 0 ledge, non-magnetic and non-conductive
✅ ideal for checking flatness, squareness, laying out parts, calibrating tools, and height measurement with a height gage
✅ used as a work surface for assembling, inspecting, and marking parts
✅ checked by auto collimator for overall accuracy assurance

💡 What is a granite surface plate used for in precision measurement and layout tasks?
- handy reference for checking flatness and squareness of tooling, fixtures, and parts.
- setting up tools and measuring heights with a height gage on a true, stable surface.
- provides a non-magnetic, non-conductive base for sensitive assemblies and inspections.
- helps calibrate instruments and lay out parts for accurate manufacturing.