Diamond Core Drill Bit Set

• The sets are used for Dry/wet drilling and beveling porcelain tile, granite, marble, brick and all similar material.The boxed set can solve most of the daily needs.
• High quality and Durability:High quality diamond and steel by vacuum brazed diamond technology provide very high efficiency,drilling faster,durable and sturdy
• This is a save money tool ：because with one standard core bit you are able to create many different hole sizes, without needing to buy several different core bit.
• Precision Manufactured in the Vietnam