Here is an invisible, detachable joining system that lets you join two parts with a hidden fastener using a magnetic actuator. INVIS comes with connectors and studs that are screwed into drill holes using a cordless drill. The MiniMag attaches to the drill and rotates on the surface to close the connection.
The MiniMag Mx drive magnet is compatible with any drill with an RPM of 1200-1500. To undo a connection, simply rotate the drill in reverse direction. Pretty cool, don’t you think?