This 2 in 1 tube cutter has two functions. The reverse of the tube cutter has an 8mm jaw that can be used to pull the collet back on the various Duotight fittings. The tube cutter itself has hardened and extremely sharp blade that makes nice clean and square cuts on tubing.

For clean, straight cuts, use with 1/4 Inch, 5/16, 3/8 Inch, 6mm-10mm OD Tubing.  Compatible with HDPE, PE, PEX, PP NYLON, EVA, and EVA Barrier tubing.