What is a "Skep Knife" and what does it look like. The picture does not show much.
I like to make things like that.
I made one. It is easy. take a shaft from a straight shaft trimmer. You can get one from the junk at your local small engine shop. they are stainless steel tube. heat about 4 inches of the end of a 14 inch peace and sqweeze it in a vise then reheat and hammer flat. not to flat and then edge it with a file and sharpen it on a stone then heat it again and bend the 90 one the last 2 inches then reheat and dip in oil and let cool in the oil then wash it and coat with wax, it works great.
I saw this vid also and had to have one of those tools.