A chuck key handle assembly for insertably receiving the chuck key wherein a user may apply an increased amount of rotational torque to a chuck on a tool includes a handle that may insertably receive the chuck key. The chuck key may engage a chuck on a tool. A rod is operationally coupled to the handle. The rod is gripped by a user. The user may rotate the handle after the chuck key engages the chuck.

The invention relates to a drive device for clamping and releasing a tool in the tool holding fixture of a tool holder. The drive device according to the invention prevents incorrect operation; said drive device can be operated manually or by a handling robot and can be actively locked to the tool holder.