Milwaukee® ShockWave™ Impact Duty™ socket, impact rated: yes, measurement system: imperial, hex drive, 1 in drive, deep socket, 1 in socket, 3.54 in OAL, 6 points, forged steel, black. Milwaukee® 49-66-6504 ShockWave™ Impact Duty™ Socket, 1 in Hex Drive, 1 in Deep Socket, 6 Points