Dry Diamond Drill Bit Vacuum Brazed Porcelain 5 DRAAK 5,6,7,8,10,12,16,20 & 25mm. Draak Dry Diamond Drill Bit 5mm to 16mm filled with wax, 20mm & 25mm has no wax for The Toughest Materials Including Marble, Granite, Porcelain, Ceramic & Glass Tiles Vacuum Brazed Porcelain 5.
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