The Iwasaki IW-250FB (250mm, flat, bastard cut) is a beast of a dreadnaught file. It's aggressive, razor sharp teeth remove material at an alarming rate, yet are still capable of producing an astonishingly smooth, almost polished surface.
Ideal for heavier stock removal tasks, taking the corners off turning blanks, architectural work, timber framing, and great for chamfering and squaring up the ends of larger blanks when preparing stock.
Iwasaki curved tooth files produce a wonderfully fast clean cut on wood and can also be used on soft metals like aluminium and brass.
Japanese carving files are designed to work with the grain. The tool will work efficiently under its own weight, reducing the pressure as you approach the finished shape will help to yield the smoothest possible surface.