Bonsai Learning Center Ancient Art of Bonsai

12" Spherical Knob Cutter by Yoshiaki

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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