Building on Rhino XS hydraulically expandable reamer reliability, the Rhino XC on-demand reamer provides complete control of reamer activation. It eliminates time-consuming pumpdown activation devices and can be placed anywhere in the drillstring for increased operational flexibility. The reamer’s one-piece, balanced design increases torque and load-carrying capacity while reducing drilling-generated vibrations, producing in-gauge wellbores for improved casing running and cementing clearance. The Rhino XC reamer is suitable for a variety of formations where simultaneous drilling and hole-enlargement reliability are essential.