Not sure, but most of the machetes I have seen have been thick bladed and modestly tempered, intentionally so. The tool is designed to cut through soft foliage and not shatter when you miss and hit a rock. Missed swings that don't find rocks occasionally find thighs-kevlar chaps seem useful for those machetists who cannot curb their enthusiasm.
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Dance like you have never been hurt, work like no one is watching,love like you don't need the money.