Final answer:
Humans used clubs and hand axes as close-range weapons and spears and boomerangs as projectile weapons, which are not seen in chimpanzee tool use. While chimpanzees create simple tools, early humans made more complex and purpose-specific ones.
Step-by-step explanation:
Two examples of commonly used human tools from before farming and metallurgy that chimpanzees have never been seen using are close-range weapons like clubs and hand axes, and projectile weapons including spears as projectile weapons, stones, sticks, and boomerangs. While chimpanzees are known to use tools and display impressive problem-solving abilities by creating things like termite fishing sticks or using stones to crack nuts, they do not manufacture or use the more complex types of tools that early humans developed. Early human ancestors, such as Homo habilis, were creating Oldowan tools for specific purposes like butchering animal carcasses which involves a level of planning and foresight not seen in chimpanzee tool use.