Kutau is the sharp head tool to dig the field for harvesting ….
Sapau is again a sharp head tool but use to dig holes in the field …..
Size of kukau is almost one feet (30 cm) where as for sapau it ranges from 90cm to 180cm.
Material wise kutau consist of wood and iron where as sapou is entirely of iron only.
Kutau is generally used to dig upper surface (not deeper then 6-7") of the field whereas Sapau penetrates deeper.
Generally after digging such deep burrow we can insert SWET easily to erect them precise vertical. ,,,,,,now again SWET needed to be cracked >>>>>