Tubing cutters are a simple, durable design. Each has a screw feed with a large grip knob to make it easier to tighten the cutter. T10 and T15 are zinc alloy construction with a built-in reamer for convenient cutting then deburring. T20 is larger but light due to its aluminum construction. It features a fold-out reamer. Wide rollers on all three models yield a square cut while thin cutter wheel profile ensures a quick, clean cut.