The Consew 14TU858 is a portable coverstitch machine, Two Needle, Two and Three Thread, with Differential Feed. For all coverstitch sewing applications. If you’re ready to take your sewing to a new level, then you’re ready for the Consew “Coverlock”. It makes the decorative and professional touches easier than you ever thought they would be. The Consew “Coverlock” puts every feature or capability you could want at your fingertips..