Use a drill bit that is thinner than the broken screw and drill a hole at the break point.
Choose a tool that is the right size for the hole and put it in the hole and rotate it counterclockwise.
Comes with bit handle
With electric screwdriver
Paired with hand drill
Use with electric/manual tools to quickly remove rusty and broken screws.
Note: Only remove, not drill.
Suitable for hand/power tools