7pcs/set Carbide Hexagonal Cross Tile Drill Bit Glass Ceramic

length : 73 Use : PCB Drilling Material : Carbide DIY Supplies : Woodworking Type : Core Drill Bit Brand Name : Realmote Origin : Mainland China Certification : CE Handle type : hexagon Cooling type (internal cooling / externa : Internal cooling Cutting diameter (mm) : 3-12 Stem diameter (mm) : 6.35 Total length (mm) : 73-95 Top angle of outer edge () : 135 Is it a standard part : Standard parts Minimum number of packages : 10 series : Ceramic bit Product weight (kg) : 0.1 Specification (diameter * full length) : 3X73 Hexagonal shank cross ceramic tile drill Product specification (diameter * full length): 3x73 Material: cemented carbide Product model: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm Product weight: 3mm11g ,4mm12g ,5mm14g ,6mm15G ,8mm18g ,10mm24G ,12m39g )