Milwaukee® ShockWave™ Impact Duty™ socket, impact rated: yes, measurement system: imperial, hex drive, 1 in drive, deep socket, 2 in socket, 2.87 in OAL, 6 points, forged steel, black. Milwaukee® 49-66-6520 ShockWave™ Impact Duty™ Socket, 1 in Hex Drive, 2 in Deep Socket, 6 Points