For years I've used a Smith's Diamond Combination Sharpener. Model # DCS4
Btw I will never touch anything but machetes and bench knives with a pull through sharpener.Fixed angle, scrape off too much steel, leave a rough toothy edge, easy to run a deep gouge along the blade ...ect.They're quick, dirty, and great for machetes and beater work bench blades, but not my pocket knives and belt knives.