Ontario Knife CO 1-18 SAWBACK MACHETE Model: 6120. Flat-ground blade with black zinc-phosphate finish. Blade Material: 1095 carbon steel. Lock Type: Fixed. Edge Type: Plain. Hardness: 50-55 HRC. Blade Thickness: 0.12". Blade Length: 18". Overall Length: 24". Made in the USA. Limited lifetime manufacturer's warranty.