Dry Diamond Drill Bits Set - FOCSTOL 5pcs 10mm Diamond Hole Saw Kit with Quick Change Hex Shank for Ceramic Porcelain Tile Marble Granite Quartz

【Dimensions】Total 5pcs/set: Diameter 3/8"(10mm); Total Length 65mm; Diamond Height 8mm; Diamond Grain #50/60; Hex Shank 6.35mm 【Application】Dry or Wet Drilling Ceramic Porcelain Tile Marble Granite, etc Cool wash: The inside of the drill bits is filled with cold wax, helps to facilitate heat dissipation and chip removal. Dry drilling without water, very convenient Vacuum brazed technology: vacuum brazed technology and high-quality diamond granules ensure fast and smooth drilling, longer service