Understanding the Turbo Threaded Adapter for Flush Grinding

What happens here

The demonstrator explains a key improvement in the redesigned Millner-Haufen wheels. Traditionally, using a lock nut with grinding wheels could obstruct access for flush grinding. The new design incorporates a "turbo threaded adapter" directly on the wheel, allowing it to be spun directly onto an angle grinder. This feature, along with countersunk screws, provides full access for flush grinding without obstruction.

Goal: Learn about the redesigned attachment mechanism for improved flush grinding capabilities.