4 inch Diamond Drill Bits

4 inch diamond drill bits are solid devices that are utilized to make holes through tough or delicate materials such as glass, stone, ceramic materials, and bones. They are small tools that are commonly used om precious gems, pebbles, sea glass, beach glass, stone, ceramic tiles, glazed pottery, shells, antlers and fossils. 4 inch diamond drill bits aid in offering versatility, accuracy, cuts in any medium, speed, damage reduction, low noise levels and cost-effectiveness. They can also be used in almost any working condition. 

Specification