| Place of Origin |
Fujian China (Mainland) |
Diamond drill bit 1)cutting materal:marble,granite 2)High Performance SpecificationArm lengthDiameter:5mm75mm6mm75mm7mm75mm8mm75mm9mm75mm10mm75mm11mm75mmDiameter:Arm length12mm100mm25mm100mm32mm100mm35mm100mm40mm100mm50mm100mm •vacuum brazed diamond core drill •Laser Welded Core Bits •vacuum brazed hard alloy core drill