That is actually a feature of this design. They were the answer to in-line screwdrivers who had no precise stopping torque: cam-out before the thread is damaged.
Wurschtbesen. Somewhere between a Gfrast and an Oaschwarzn. But on the nicer end of both.
That is actually a feature of this design. They were the answer to in-line screwdrivers who had no precise stopping torque: cam-out before the thread is damaged.