Here is one of possible version of Naeshi for pracice, made from beech wood, length is 40 cm. Naeshi usual is truncheon (metal bar) similar Jutte but without Kagi(hook), in few shapes and this is one of them. To some Naeshi is 25-30 cm long and 1-2 cm thick in diameter, it could be made from iron, bras or wood. The cross section could be round, square with cut edges, hexagonal or octagonal. Naeshi may have a Tenukihimo(cord) with Fusa(tassel) attached on round or heart-shaped ring to keep weapon secure. Sometimes Naeshi refers to any wooden stick shorter than three shaku(90 cm), also known as Nayashi.
Here is few photos of O-Dachi bokken, that was made in March 2013, still work on saya toool for this kind bokkens. Length of blade is 130 cm, and length of tsuka is 50 cm with 114 hishigami under itomaki
Dear Budo friends, long time I devoted to searching for the original Kyoketsu shoge. I know that there is not only one unique form of Kyoketsu shoge, but what we find nowadays usually does not match the true purpose of this tool, all that comes from the time of the Ninja mania, with large number of movies and a lot of books. The most common mistake is in the handle of this tool, it is usually to short which destroys the geometry and balance of tool. I will complete this article with more examples and information soon
I based my Kyoketsu according to this picture, which show one of the most logical and most original form, source is Soke Hatsumi as you could see