●Ball shape stopper for connecting socket wrench socket.
●Swinging Angle is 30°.
●EUA-4（12.7mm type）is press fitting hexagon shank. Strong residence to axis break.
●Hexagon shank is 6.35㎜. Quick attach to impact driver.
●100% made in Japan. Use selected materials.
● Hexagon shank and square drive are able to take out.