2011 Straightline Drill 36 Inch Straightline Roller Cone Rock Reamer In Great Condition. Used On Two Shots. Was Used On DITCH WITCH 7020 With 3 1/2 In. Rod. Make Offer, New This Reamer Was Almost $50,000. All Of The Cones Are In Great Shape And The Carbide Is In Great Condition. The Bearings Are Tight And Reamer Works As It Should., To Fit Make: DITCH WITCH, To Fit Model: JT3020 MACH 1, Jt4020, Jt4020at, Jt4020 Mach 1, Jt7020, Jt8020 Mach 1, Jt7020 Mach 1, Jt100, Jt100 Mach 1, Jt120, Jt210, Jt215