Review on Titanium Nitride Coated Comoware Drill by Joshua Donnis

Well made bits. One of the many options I've bought to remove hundreds of old, stripped screws from my deck. Worked on some but mostly just drilled through the center. No better or worse than dedicated screw extraction sets, rubber bands, or vises. I ended up just cutting out the whole deck, screws and everything and putting in new lags. Now I have a set of left-handed bits :-).