Rothenberger 70402 MINICUT II PRO Tube Cutter, 1/4" - 7/8" OD
Rothenberger MINICUT I PRO for copper tubes features a large knurled knob for fatigue-proof pressure control.  Two guide rollers with recess enables cutting close to flares.  Handy design with a very small working radius makes it ideal to use in hard to reach places.