Original: They are designed to be used in order : A scrub plane , which removes large amounts of wood quickly , is typically around in length , but narrower than a smoothing plane , and has an iron with a curved cutting edge .
Simplified: They are designed to be used in order : A scrub plane , which removes large amounts of wood quickly , is typically around 9 inches ( 230 mm ) in length , but narrower than a smoothing plane .