Tubing cutter Heavy duty zinc casting with a thicker design than other minis of the same capacity For cutting copper, aluminum and mild steel tubing in confined areas Large one piece knurled knob and rollers means no lost pieces Heat treated rollers and pins allow for easy tightening on pipe Heat treated alloy steel cutting wheel Durable epoxy powder coated finish for corrosion resistance and durability Replacement cutter wheel #42135 1 OD