9 1/2" Steel Tooth Tricone Bit Beijing Superior Drilling Equipment Co., Ltd. Base Info Model NO.:IADC 127Customized:Non-CustomizedStandard:AISI, APILength:Taper-lengthMaterial:Solid CarbideUsage:Well DrillingTrademark:SuperiorSpecification:9 1,2" 127Origin:ChinaHS Code:82071910 Description Pre:Power Tools Drill HSS Drills Bits Morse Taper Shank Twist for Metal Drill Bit Next:Tricone Rock Bit for Water Well/Oil Well Drilling