Aqua Lung Argonaut KnifeThe Argonaut Dive knives are designed to be one of the toughest knives out there. The blade is cut into two styles; the Spartan and the Blunt. The Spartan comes to a spear head point with one side featuring rounded die cut serrations to prevent snags on rope. The Blunt comes to a blunt chisel like tip. One full side of the Blunt blade is die cut with rounded serrations. The butt, handle, hilt and blade are all fashioned out of one piece of 4mm thick