diamond hole saw diamond core drill bits for hard rock

This diamond core bits are designed  for wet drilling stone, ceramics, glass, marble, granite, tiles and brick smooth cutting action and without chipping.

Specifications:

Features:

1.Longer drilling life, better drilling effective.

2.Brazed Diamond Drill Bit can be operated without water, which improves working environment.

3.It shares the same durability of Sintering tools and the sharpness of electroplated tools.

4.2-3 longer wrking-times than electroplated type.

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