Bushcraft knives and tactical fixed blades are usually large blades that typically have thick spines. These types of knives can sometimes require wider sharpening angles. For these reasons, you'll want to choose a sharpener that has a wide angle range and a vise that can open up wide to accommodate thick blades. As someone who wants a sharpener that can be easily packed up and stowed, these are the best sharpener options for you. Any of the below options will make a great choice. When choosing an option, consider how frequently you plan to sharpen, as you'll want to choose a sharpener that's faster and more convenient to use if you plan to sharpen on a regular basis.