noun
fine brush for writing square style Chinese characters
A brush used for writing 楷書 (kaisho, standard script) in calligraphy. The term is somewhat specialized and may be encountered in calligraphy contexts.
See also: 楷書
真書きで楷書を書くときは、穂先の細い筆を使います。
When writing kaisho with a shinkaki brush, you use a brush with a fine tip.