Depending on whether you're looking for a research paper on the history and physics of axes or instructions for a literal "paper axe" craft, there are several authoritative resources available.
: The Metropolitan Museum of Art provides an in-depth analysis of high-status historical axe heads, discussing their asymmetrical design and silver wire inlay. Axe Head Mechanics ax head
: This technical supplement focuses on long-term storage, transportation, and rust prevention for the steel. Depending on whether you're looking for a research
: For efficiency, the cutting edge (bit) angle should be tailored to the wood type: 20° to 25° for dry wood and 15° to 20° for green wood. ax head