Dry or Wet Diamond Drill Bits Set 6 PCs - 1/4" 3/16"5/16" 3/8" 1/2", and 1/4" Carbide Drill bit Diamond Hole Saw Kit with Hex Shank for Granite, Ceramic Tile Stone, Marble Porcelain, Glass

【Package includes 】6 Pieces of Dry diamond core drill bits kit for drilling holes diameter of 3/16inch (5mm)*1, 1/4 inch(6mm)*1, 5/16inch (8mm) *1, 3/8inch (10mm) *1, 1/2 inch(12mm) *1, and 6mm carbide drill bits*1. 6mm carbide drill bits is used for some hard material at the begining if diffcult drill.Sufficient quantity to meet your needs
【Unique Vacuum Brazed Dry Drilling Design】The diamond drill bit made of carbide and integrated with wax lubricant inside, which can melt while dry drilling and cool the cutting surface; Water can be used as additional cooling to prolong the life of the bit. Depth mark useful for precise project.
【Widely Applicable】The ceramic hole saw great for drilling clean holes to hard materials especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick, Note: not for wood
【Wide compatibility】Diamond coating enhances the drilling speed; The tile drill bit set is equipped with a 1/4" hexagonal shank. Quick change hex shank provides a better chuck grip and fits, compatible with most machines such as Hand Drill, Angle Grinder, Bench Drill;
【Easy to Carry and Use】 This diamond drill bit set comes with a portable storage case for convenient use and store. If you encounter any problems or are not satisfied with the products while using our Diamond Drill Bits set, please feel free to contact us.

Hello,