Diamond Core Drill Bit for Brick Wall Asphalt Reinforced Concrete Danyang Jiulong Tools Co., Ltd. Base Info Model NO.:JL028Blade Type:SegmentedManufacturing Process:Cold PressedApplication:ConcreteTrademark:OEMTransport Package:Skin Card, Blister Card, Color BoxSpecification:25-355mmOrigin:China Description Pre:Diamond Hole Saw Core Drill for Coring Granite Mansonry Concrete Next:6PCS HSS Rotary Tool Circular Saw Blades for Cutting Discs Mandrel Cutting Tool