The present invention generally relates to a one-piece all aluminum broadhead having from 2 to 5 cutting blades, wherein each cutting blade has a tapered thickness wherein the thickness of each blade is from 0.06 inches up to about 0.25 inches immediately behind the cutting edge and a thickness at the base of said blade that is from 1.5 to 2.5 times thicker than the thickness of said blade immediately behind said cutting edge. The broadhead of the invention may be machined as a single component from, for example, bar stock material. One or more steps of the broadhead machining or manufacturing process may be automated, for example by the use of one or more robotic gripping arms. In one embodiment the one-piece all aluminum broadhead has three cutting blades and is hard anodized.