Diamond Core Bits Drilling for Ceramic Tile Granite Marble M14 Thread

PRODUCT NAME: Vacuum Brazed Drill core bits M14 Thread SPECIFICATION:  Diameter：20mm,25mm,30mm,32mm,35mm,68mm  Total length 60mm; Grit: #40/50; Diamond height 10mm; M14 Thread （It applies to Europe） QUANTITY: 1pc ,2pcs Application: Drilling for Ceramic Tile,Porcelain Tile,Marble,Granite,Quartz,Artificial Stone and other materials. FEATURE: 1.Serrated cutter tooth design,improves sharpness and drilling speed, multiple chip removal slots between the serrated teeth for quick dust removal;2.Preferred 10MM high-quality diamond,high hardness and dense; neat and sharp drilling, better finish;