Grip Handle for socket "1/4" & 6.3sq of (6.35mm)

http://bunkai.sakura.ne.jp/bunkai-wp/3d_printer/644/

"1/4" & 6.3sq(6.35mm)???????????????????????
PRN3D????????????????????????????
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It is a grip handle to be used for socket "1/4" & 6.3sq of (6.35mm) standard.
Has been created to facilitate the adjustment of the level of heat bed PRN3D.
It is a part that can be used for general purposes.