HHIP 4401-1812 Black Granite Surface Plate, Grade A, Ledge 0, 18" Length x 12" Width x 3" Height, +/000050" Accuracy, 80 lb. Weight
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LLDSIMEX 12 Inch Length 9 Inch Width 3 Inch Thickness Granite Surface Plate, No Ledge 12x9x3 Inch