Rothenberger ROTRAC 42 PLUS 70021 Professional Tube Cutter, 1/4" - 1-5/8"
ROTRAC 42 PLUS professional tube cutter precisely cuts copper tubes 1/4" - 1-5/8" OD.  Smooth-running telescopic action provides a consistent working radius and advances the blade faster than other tube cutters.  PLUS  cutters feature a large, ergonomically designed knob which is easier to turn.