Black Granite Surface Plate

This Black Granite Surface Plate provides an accurate reference plate to measure objects for flatness and squareness.

• Perfect for lapping tools or checking set-ups on small engineering projects.
• Affixing wet and dry paper to the surface enables the plate to be used as a large sharpening stone.
• Each plate is supplied with its own surface flatness test report and its packed in a wooden shipping case for safe transport and storage.

Specifications:

Dimensions: Approx 300 x 230 x 50mm

Surface Accuracy: Maximum flatness error rated at 2 micron (0.002mm)

Weight: 13.2kg

Benefits of Black Granite:

• Harder than steel and does not rust or corrode
• Not as affected by humidity or changes in temperature
• Retains accuracy for years
• Low water absorption

Surface Plate Use:

• Rotating the surface plate around helps avoid wearing away the same area of the plate over time
• Ensure that the Granite Surface Plate and tools are clean and free from grit or dust
• Dropping items onto the Granite can chip its surface