Ulaks, similar to those found in the Riddick movies

Ulaks are curved single-edged knives with serrated edges typically used in tandem. ... Richard B. Riddick took a pair of these from a mercenary on-board the Dark Athena.

These "swingblades" are capable of slicing and stabbing positions, and are designed to compliment the natural motions of a person's arms and hands in close combat. The serrated edge is used for blocking other bladed weapons.

Source http://riddick.wikia.com/wiki/Ulaks

Once printed and assembled they are nearly 14 " long.
Then handle is a bit thick with this version so I am trimming it down about 1/2 inch

10/27/17 - Update all stl files. Re-cut, thinner handle, more smoothing.

I enjoyed making these, I hope you can enjoy them too

Let me know if you these printed I can help with that too

Darrin

https://www.pixi3d.com