Milwaukee Shockwave 1/2 in. drive SAE 6 Point Impact Rated Deep Socket. WHAT’S INCLUDED: (1) 9/16 in. Shockwave Impact Socket, (1) 3/8 in. Socket Adapter, (1) 1/2 in. Shockwave Impact Socket. INCLUDES: 1 x 1/2″ Impact Socket, 1 x 9/16 Impact Socket, 3/8″ Socket Adaptor.