To some extent, you get what you pay for. If you go to an industrial supplier, that sells a range of bit types, you can figure that they all have more-or-less the same mark up, and are paying for better steel, better grinding and better heat treat. And is the TiN coating thick enough to give the bit longer life, or just thick enough to give it some color and be able to slap "TiN coated" on the label ?
But it depends on what you are drilling too. Wood or aluminum, it really doesn't matter what kind of drill bit you use. Steel will wear a bit more readily (but you can re-sharpen the bigger bits).
But it depends on what you are drilling too. Wood or aluminum, it really doesn't matter what kind of drill bit you use. Steel will wear a bit more readily (but you can re-sharpen the bigger bits).