Yking - 20 mm Diamond Core Bit - It is a precision product with good quality and consistency. It has a unique diamond coating technology used for bonding diamonds on a compatible metal shank. It is a premium and well-graded industrial diamonds used for tool life and consistency. It is recommended to use water as a coolant or lubricant. It is mainly used for making holes on marble, granite, glass, composite, and any hard, brittle material.
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