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Title: For experienced users only! Not your dime store drill set.
Review: Outstanding set of self starting bits. I work with industrial fabrication and have to drill in all sorts of steel. This bit set lasts 10 times longer than most sets, I have not found any out there that can compare.These drills self start without walking, and drill with almost no pressure. However that is the catch. You CANNOT press hard on these bits, they will shatter the tips. You can have hard, or you can have flexable / tough. Hard stays sharp. Tough tolerates abuse, but dulls quickly. If you use these drills, set your drill chuck to screw and set the tork to slip on the smaller bits or the drills will chip as they break through the material. If you take care of these bits they will last you. Once I learned to set the slip clutch these bits seem to last forever! Best drill bits on the market, the only brand I will use.And as proof of how tough they are, these cut stainless. Again and again. Try that with a hardware store bit!
