[Features]● Socket for tightening/loosening nuts of raceways, hangers, etc. (guaranteed torque: 47 N・m). ●Can be used with a 13mm wrench. (ER-2 only) ●Can be inserted in all directions, greatly improving work efficiency. (Depending on the shape of the raceway, it may not fit.) ●Target size is up to 30mm raceway. ●It is a hybrid tool with carbon fiber wrapped around an ultra-thin socket.