Where else besides metal press punches can carbide be found. I know some drill bits are but how can you tell which ones[/QUOTE
Metal Lathe Bits can have replaceable carbide inserts in the shape of triangles. Some of those electric drywall router bits are solid carbide; so are some Dremel tool cutters. I laughed when I saw how one fellow at a surplus store separated High Speed Steel bits from solid Carbide, because of the simplicity of it.... He used a strong small magnet.... HSS bits pop to a magnet and resist getting pulled off. Carbide bits have about 1/3 the attraction of steel bits. When you try a few, you'll know which bits are which. Try it.