How do you take out one way security screws?

Question

How do you take out one way security screws?

Answer 1

use a dremel grinder and cut a slot the size of a flat headed s***w driver.

Answer 2

You can use a centre punch and punch it anti clockwise.

Answer 3

we drill them out and remove the fitting and use a vice grip to remove them

Answer 4

The removal bits for broken screws. Sold at many places.