This useful file is for smoothing out the depression in which to set the string and rattan.
Size Withd 6mm, Made in Japan
Joint Forming Tool-L, ¥8500
Celluloid Sheet (Tortoiseshell Pattern, Thin) - Material for Making Shakuhachi Joint Rings, ¥800
Wooden Joint Section Insert S, ¥800
Wooden Joint Section Insert L, ¥1000