‘Butterfly 70th Anniversary’ blade announced in May 2021 is a limited edition product made to commemorate the 70th anniversary of Tamasu Co. (= Butterfly) and the 100th anniversary of the birth of its founder. Kiso Hinoki wood was used for top layer to emphasize the Butterfly’s tradition, and ALC which has led the success of Butterfly fiber blades was selected as a fiber of this blade. As the material for the handle, raw wood of millennium cedar which was used for numerous Butterfly blades until the 1990s was selected. The construction of plywood is 5+2 ply outer-fiber construction. Overall thickness is around 6.0mm.

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