In contrast to the shakuhachi fabricated using the above method, the bore of older shakuhachi called 'ko-kan' (literally, "antique shakuhachi"), or 'ji-nashi-kan' (literally, "shakuhachi without urushi-ji) are not coated with urushi-ji, and remnants of the joints often visible.
これに対し「古管」あるいは「地無し管」と呼ぶ古いタイプの尺八は、管の内側に節による突起を残し、漆地も塗らない。