Stone Diamond Core Drill Bits

This 60mm granite diamond core drill bits are designed for drilling granite and hard stones. We use the grade A quality steel barrel to weld our mature formula segments on it. So it can deliver a fast drilling speed and superior lifespan. And roof segments makes it very easy to drill into the stones. Welcome buy granite diamond core bits from Sunny!

This 20mm granite diamond core drill bits are designed for drilling granite and hard stones. We use the grade A quality steel barrel to weld our mature formula segments on it. So it can deliver a fast drilling speed and superior lifespan. Welcome buy granite diamond core bits from Sunny!

This vacuum brazed protective teeth dry use diamond granite core drill bits are designed for drilling granite and hard stones. It's vacuum brazed barrel can effectivly protect the diamond core bit segment and extend its lifespan. The turbo core bit segments can remove the chipping and enhance the drilling efficiency. It's very popular in American and European markets.

These high quality dry use granite core drill bits are engineered for exceptional footage and fast/aggressive drilling characteristics. We adopt the industrial grade diamond powder and Cobalt powder to produce our diamond core bits, so our diamond core bits have a stable drilling performance and superior lifespan. High diamond content yields excellent life and drilling efficiency through heavily reinforced concrete, marble, granite, refractory brick and other hard materials. We use the grade A quality steel tube to ensure the drill bits run precisely.

These vacuum brazed diamond core drill bits are designed for drilling marble, glass and tiles. We adopt the 30/40# diamonds to produce these drill bits and a high diamond concentration, so that they can deliver a smooth drilling surface. We can make all size and thread to apply your work. Sunny is keep to making your drilling easier!

These solid segment diamond drill bits are small diameter drill bits, when the diameter is bigger, we also have the crown segment drill bits and segmented drill bits. This solid segment diamond core drill bits are designed for drilling granite and hard stones. We use the grade A quality steel barrel to weld our mature formula segments on it. So it can deliver a fast drilling speed and superior lifespan. Welcome buy granite diamond core bits from Sunny!

This crown segment diamond core drill bits are designed for drilling granite and hard stones. We use the grade A quality steel barrel to weld our mature formula segments on it. So it can deliver a fast drilling speed and superior lifespan. Welcome buy granite diamond core bits from Sunny!