Black Stones | McMaster-Carr

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Shape

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Plate Shape

Rectangle with Two Ledges

Surface Plate Grade

Laboratory Grade AA

Inspection Grade A

Toolroom Grade B

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Abrasive Material

Silicon Carbide

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For Use On

Material

Silicon Carbide

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REACH

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DFARS Specialty Metals

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Fed. Spec. GGG-P-463

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How can we improve?

81 Products

Fabricating and Machining

Polishing Stones

Polishing Stones

Create a finer, more polished finish on tools, molds, and dies than sanding sticks

Sanding Sticks and Bricks

Sanding Sticks and Bricks

Deburr and smooth larger work surfaces and machine parts than polishing stones

Measuring and Inspecting

Surface Plates

Extremely flat to give an accurate reference plane for layout and inspection work

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)