5pcs Dry Diamond Drill Bit for Porcelian Tiles Marble Granite Ceramic

[Dry Diamond Drill Bits Set]- This set is suitable for drilling diameters of 1/4 inch (6mm), 5/16 inch(8mm), 3/8 inch(10mm), 1/2 inch(12mm). A variety of diameter specifications to meet your different needs.[Dry Drilling Design]- It is made of cemented carbide with integrated wax lubricant, which can melt and cool the cutting surface during dry drilling; water can be used as additional cooling to extend the service life.[Unique Features]- Diamond coating enhances the drilling speed; Round shank compatible with most machines such as hand drill, angle grinder, bench drill; Side flutes help to remove debris and drill holes smooth and fast; Depth mark useful for precise project.[Easy to Carry and Use]- Each diamond bit is equipped with a portable plastic tube to reduce collisions during transportation. It is small in size, light in weight, and convenient to use and store.[Wide Application]- It is perfect for drilling clean holes in hard materials, especially ceramic tiles, porcelain floors, granite, ceramics, glass, mirrors, marbles, stone bricks, etc. Note: Not suitable for wood.Colour: blueMaterial: cemented carbidePackage Contents:5 * Dry Diamond Drill BitsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.