EKIIV China OEM 16-300mm Concrete Drill Bit Diamond Core Drill Bit for Reinforced Concrete Stone Brick Wall Hard Rock Holes

132 MM Diameter*460MM Length, 152 MM Diameter*460MM Length, 102 MM Diameter*460MM Length, 168 MM Diameter*460MM Length, 180 MM Diameter*460MM Length, 200 MM Diameter*460MM Length, 114 MM Diameter*460MM Length, 89 MM Diameter*460MM Length, 127 MM Diameter*460MM Length, 96 MM Diameter*460MM Length, 63 MM Diameter*460MM Length, 159 MM Diameter*460MM Length, 83 MM Diameter*460MM Length, 140 MM Diameter*460MM Length, 120 MM Diameter*460MM Length, 56MM Diameter*460MM Length, 76 MM Diameter*460MM Length