Singer Ultralock 14U32 3 thread serger. Great machine.
I do love sewing, and use both my Singer and Imperial flatbed sewing machines, as well as an industrial Brother flatbed and a ancient Singer patcher. The Singer Ultralock 14U32 3 thread serger is a completely different beast.
The serger only does edge overlocking, but it does it so well. It not only overlocks the edge, preventing fraying, but also cuts the edge clean and reinforces the edge with a single stitch through the layers of material. The other Ultralock models also have a 4th thread that can do a second stitch through all layers, but I can do that on my flatbed.