1. Package Includes 1/4"(6MM),5/16"(8MM),3/8"(10MM),1/2"(12mm), dry diamond drill bits+1pc 1/4"(6mm) Carbide Drill bit mainly used to provide accurate positioning for diamond bit
2.Application Suitable for all tiles, marble, artificial stone, granite, stoneware and quartz,wax inside the drill bit, dry Diamond drill bits are worked great, using water could prolong the lifetime
3. High quality Superior diamond provides smooth and fast cutting performance, saving you time and effort in your construction or renovation projects
4. Durable & 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
5. 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
