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a hand forged Japanese Edo period Ninja Tsubo-Giri (hole saw) makes a hole nominally 6-7cm diameter (each one is hand made so the diameter will differ) fully functional with a ring head for a cross bar (not supplied) based on an example in the IgaRyu ninja museum, Japan. photo shows Tsubo-Giri and hole made on a cedar wood shingle made from water quenched S275JR steel for japanese edo period living history reenactment use only made in sheffield england by daegrad tools
a hand forged Japanese Edo period Ninja Tsubo-Giri (hole saw) makes a hole nominally 6-7cm diameter (each one is hand made so the diameter will differ) fully functional with a ring head for a cross bar (not supplied) based on an example in the IgaRyu ninja museum, Japan. photo shows Tsubo-Giri and hole made on a cedar wood shingle made from water quenched S275JR steel for japanese edo period living history reenactment use only made in sheffield england by daegrad tools