16pcs Set Of 6-50mm Diamond Glass Drill Bits $ 15.72 Specification: The diamond drill bit combines advanced technology, scientific and technological achievements and performance. The precision workmanship and grade wear resistance and sharpness truly represent the future model of the diamond industry. In processing and use, it has the advantages of no edge chipping, fast speed, sharpness, and wear resistance. Specification: 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 25mm 28mm 30mm 35mm 40mm 45mm 50mm Marble drill bit: Suitable for drilling glass, ceramics, floor tiles, etc.
