M14 Vacuum Brazed Diamond Drill Bit Drilling Core Bits Marble Ceramic Hole Saw kit

Brand Name：Versery Sizes：35mm 40mm 50mm 68mm。 Total length: 60mm Connection: M14 Thread Diamond height :15mm Application: Dry/wet drilling for porcelain tile, granite, marble, ceramic... Feature: 1. Vacuum brazed technology provide high efficient working performance 2. Fast and Smooth drilling 3. Long lifetime 4. Less Chipping 5. Minimizing any breakage 6. Less loss of material 7. Less heat generation 8. Better finish quality