>>317803Yes. If it's a bad one then you could put it in a vice and hit it with a file before you use the diamond rod to save time.
>>317804You're over complicating things for yourself dude. Get a double sided oil stone from B&Q. Use toothpaste and an old belt for stropping.
>>317816Entirely up to you man but anything flat is going to be useless on your kuk. The inner curve needs something rounded to sharpen it properly.
You could try gluing sandpaper/wet&dry paper around a broom handle and using that on the upper curve.
Flat files on a kukri is a bad idea. They're fine on the lower vurve but not on the upper.
Pic related is what I use.