ITEM: Diamond M14 Vacuum Brazed Drilling Bit Quantity: 1pc only Specification: Brand Name:HIGHDRIL Certification:CE Certification Origin:China Technology:Diamond Vacuum Brazed Is_customized:Yes Working Length:10mm Total Length:60mm Diameter:6/8/10/12/14/16/20/25/28/30/32/35/40/45/50/55/65/68/75/90/100/115/125mm Application: Drilling ceramic granite marble nature stone and concrete Feature: 1.Advanced vacuum brazing production process,Fast cutting and drilling, long life, high efficiency and durability, high cost performance ; 2.Material optimization,The perfect combination of high-quality steel body and high-quality diamond; 3.U-groove tooth shape,More sharp, improves product performance and facilitates the discharge of debris; 4.No edge breaking,The drilling and finishing effect is good, neat and smooth; 5.Low pollution,Suitable be used with water or without water.