Review on DEWALT DW2551 Assorted 16-Inch Drill Bit Set by Jeremy May

Two of these bits broke on the first use or two. I have drilled kitchen cabinets for screw holes to avoid heavy use. The "break" did not occur in the drill itself, but at the point where the drill enters the hex bar. Bits are actually two parts: a regular drill that is pressed/inserted into a hex bar. Since it was open I could see that the drill shank has a flat area that appears to be held by another flat area inside the hex shank. I was able to put the drill back into the hex bar and rotate it freely by hand. What was supposed to "catch" the bit and prevent it from turning has apparently long since disappeared. I hope I just had a bad batch. Revain will replace them and I'll see how they work. Knowing what I know now, I probably would have chosen a solid hex bit rather than what turned out to be two pieces.