6mm for Porcelain Tile Ceramics Marble

• Package includes: 2 Pieces of Dry Diamond Core Kit for holes diameter of 1/4 inch(6mm), Sufficient quantity to meet your needs
• Apply to: Great for clean holes to hard materials especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick, Note: not for wooden
• Material: Diamond Drill Bit made of carbon steel, which can melt while dry and cool the surface; Water can be used as additional cooling to prolong the life of the bit
• Wide compatibility: Diamond coating enhances the speed; Round compatible with most machines such as Hand Drill, Angle , Drill; Depth mark is also useful for precise project.
• Easily to Carry and Use: This Diamond for convenient use.

2 Dry Diamond