Package Includes 4pcs 1/4"(6mm) dry diamond drill bits+1pc 1/4"(6mm) Carbide Drill bit mainly used to provide accurate positioning for diamond bit
Size 4pcs Diameter 1/4"(6mm).Total Length 68mm,Diamond height 10mm,Diamond Grit 35/40,Quick Change Shank; 1pc 1/4"(6mm) Carbide quick-hexagon Drill bitTotal Length 77mm,work length45mm
Application Diamond core bits are worked great for dry drilling holes through hard porcelain tile, ceramics,bathroom tile,granite & marble, masonry, concrete, glass, hard plastic
Durable and Efficient Each dry diamond bit is embedded with wax that will melt during dry drilling to cool the cutting surface; Water can act as additional cooling to prolong the worklife of bit.The carbide drill cutter Can be positioned,The ideal diamond drill bit set
Machine They can be used with hand drills, bench drill etc,can be used with common drilling machines and cordless screwdrivers from many well-known brands
