Review on Revolutionize Your Drilling Experience with Century Drill Tool 74108 Cobalt by Kadarius Gentry

I could not dent the stainless steel screw (approximately 3/16-1/4 inch) that I was attempting to remove. This propeller on my boat broke the head off. I tried to make a hole to insert the extractor with this drill bit. Couldn't do it after 30 minutes of trying. My mechanic was on the boat fixing the engine and he tried too. I used a Dewalt 3/8 20 volt drill bit. Maybe a more powerful drill? And the drill was in the opposite direction.