它，便是手斧。

It's the hand axe.

使用锤子去敲击另一个锤子或短柄手斧。

Using one hammer to strike against another hammer or hatchet.

我们这块手斧就是个头有点过大点儿，使用不方便。

Our hand axe is just a bit too large to use easily.

假如你有能力制造出那么体面的手斧，那么我敢打赌当已经相当具有某些我们现代社会能够认可的共性。

If you can make a decent handaxe like this one, it's a good bet that you're well on the way to something we would all recognise as society.