Tungsten Carbide Drills Bits for Metal Drilling ZhuoTuo Precision Tools (Suzhou) Co., Ltd. Base Info Customized:CustomizedLength:Taper-lengthType:Core Drill BitUsage:Metal DrillingTrademark:ZTTOOLSTransport Package:Paltic Box in Side, Carton out SideOrigin:SuzhouHS Code:8207509000 Description Pre:Carbide Annular Cutter for Drilling Next:Tungsten Carbide Tipped Drill Bits