... drawing 3.can be easily cooled Pencil edge diamond grinding wheel with internal cooling holes Special design for easily cooled.Regular specifications ... be available according to your requirements or your drawings.Can with or without water passage. ShapeGlass thicknessDU1TXVH*16B3100, 125, 150, ... , INTERMAC, BENTERLER, BEIJIANG and others Pencil edge diamond grinding wheel with internal cooling holes