Top Sales Reamer/Hole Openers for Trenchless Drilling Beijing Superior Drilling Equipment Co., Ltd. Base Info Color:BlueIADC:517Connection:6 5,8"Bit Weight:241.3kgTrademark:superior brandTransport Package:Wooden or CustomizedSpecification:size from 3 3,8" to 26Origin:ChinaHS Code:82071910 Description Pre:Roller Cone Pilot Bit 215.9mm Next:Rock Reamer 12′′-42′′ HDD Drilling