Vacuum brazed diamond drill bits in 1-piece quality; professional diameter: 6 mm; Total length: 60 mm; Diamond height 10 mm; M14 threadDry or wet drilling for porcelain tiles, ceramics, granite, marble stoneVacuum brazing technology provides much longer life than electroplated coatingsLess chipping; minimize breakage; Less heat generation; Better surface finish ================== Description == = =================PRODUCT NAME: High quality vacuum brazed drill bits Professional M14 thread Diameter 6mm QUANTITY: 1 pieceSPECIFICATION: Diameter 6mm Total length 60mm Diamond height 10mm M14 thread (Very important to mount on your machine)FEATURES:Dry or wet drillingWide Use for drilling ceramic tiles, marble stone, granite...Vacuum brazing technology provides much longer life than electroplating colors (usually 3-5 times)Less chipping, Reduced breakage, Reduced heat generation, Better quality. Surface finishHigh diamond exposure rate allows faster and more aggressive drilling.??save money and time... ?? < span class=\"a- list-item\">YPLonon Dry Diamond Core Bits Advantages: Very fast cutting through the toughest porcelain tiles. ??Saves a lot of time and effort. No pre-drilling or twisting of the marked hole required.N will not damage the tile surface. The diamond core is durable, the tool life can last a long time. Angle grinder hole saw specifications: Material: Diamond < br />Color: RedType: M14 Drill Total length: 60mm/2.36''Diameter: Drill head width: 6mm/0.25''