Hard woods and tight curves should be cut using what blade speeds. faster
O faster
O slower
O it doesn't matter

slower

Explanation:

When it comes to using scroll saws, it is important to consider the type of wood in order to choose the correct speed. The blades of the saw tends to break easily, thus it is essential to choose a "slower speed" when shaping hard woods. Such speed is also used for "tight curves." Furthermore, it is important not to force the wood to the blade because it will also cause breakage.