🔍 SpeTool spiral bits are quite versatile and can cut a wide range of materials. They excel in **wood of all types** – softwoods, hardwoods, plywood, MDF, and HDF:contentReference[oaicite:5]{index=5} – delivering clean results. Many of these bits (especially up-cut and O-flute variants) can also handle **plastics** like acrylic and ABS, as well as **foam board** and similar composites:contentReference[oaicite:6]{index=6}. Certain spiral bits (particularly single-flute ""O-flute"" designs) are even rated for **soft metals** like aluminum. Always check the specific bit description, but in general SpeTool’s solid carbide spiral bits can tackle most wood-based materials and some plastics with ease.

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