The carpenter's "cutting magic weapon": the secret behind the saw

Do you think a saw is just a piece of metal with teeth? That's too much! From ancient times to the present, saws have undergone countless evolutions to become what we see today.

The earliest saws can be traced back to the Neolithic Age, when our ancestors made simple saws with flint flakes to cut wood and bones. In the Bronze Age, metal saws began to appear, greatly improving efficiency. Modern saws are even more diverse and have different functions:

Hand saws: flexible and light, suitable for fine cutting.
Electric saws: powerful and suitable for quickly cutting large pieces of wood.
Curved saws: can cut various curved shapes.
Circular saws: fast cutting speed, suitable for straight cutting.

The secret of the saw is hidden in its teeth! The shape, angle, and arrangement of the teeth all affect the saw's cutting efficiency and effect. For example:

Straight tooth saws: suitable for quickly cutting softwood.
Bevel tooth saws: suitable for cutting hardwood and not easy to jam.
Wavy tooth saws: suitable for cutting metal and plastic.

Choosing the right saw can achieve twice the result with half the effort! Next time when you see a carpenter wielding a saw, don’t forget that behind this small tool lies the crystallization of human wisdom!

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Видео The carpenter's "cutting magic weapon": the secret behind the saw канала Craftsman Asmodeus