Bonsai Learning Center Ancient Art of Bonsai

12" Spherical Knob Cutter by Yoshiaki


Known in Japan as Kobu iri Hasami, these cutters are designed for removing trunk knobs and roots.  The head is shaped like a ball, hence the name 'Spherical'.  They produce a hollow, circular cut that heals quickly and with a minimum of scarring.

A larger version used to create a concave cut into the trunk where a branch was.  This allows the tree to heal and clause folds into the depression so that the trunk does not have a raised area where the branch once emerged. This is also a great tool to use during repotting when cutting large roots and trunk under soil line.


Made in Japan


Length - 12 inches