When putting hard wood through the thicknesser such as Iroko the wood was left a little rough in areas and took little gouges out here and there. Is that normal on hardwoods?

A little use of sandpaper took the roughness off. The wood was well seasoned and dry. I put through a piece of pine and that was a very good finish.Do I need a different material for the blades when using hardwoods, or am I doing something wrong?

When thicknessing hard woods such as the iroko you were trying to thickness, this wood is such a hard material we would recommend for a finishing pass take no more than a 0.5mm cut, this should produce a much finer finish.

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