Sharpening large blades, Bolo knife, Battle axe, Board axe, Hog splitter and El Salvador swords.

A knife sharpening video shows large Bolo knife, Battle axe, Board axe, Hog splitter and El Salvador sword blade being sharpened with a Block sharpener. Bolos, distinct from other Filipino swords and bladed tools, serve both as weapons and versatile tools. They typically feature a curved, often convex, wide blade that narrows toward the hilt, ending in either pointed or blunt tips. Different ethnic groups use various types of bolos for purposes ranging from large knives to short swords and specialized agricultural tools, with uses including hunting, cutting grass, opening coconuts, harvesting crops, and clearing brush. Sharpening an El Salvador sword, especially machetes, is easy as seen in these videos. Known for their durability and practicality, these blades are often crafted from high-quality materials for daily use in rural areas. The Condor El Salvador Machete, for example, has a 1075 high carbon steel blade with an epoxy black powder coating, a rugged polypropylene handle, and a brass-lined lanyard hole, plus a stitched and riveted leather sheath with an integrated belt loop—ideal for farmers and outdoor enthusiasts. When sharpening knives, it’s best to preserve the original edge. Block sharpeners excel at this, honing blades without tearing or peeling the steel, leaving no nicks or burrs, and working on everything from kitchen knives and pocketknives to hunting knives, hatchets, swords, daggers, scissors, and even serrated edges.