This Irwin step-drill was reasonably priced and has lasted about the longest of any I've had in this size range. I keep a bit of this size in each of my drill storage cases and since this 1/8" to 1/2" size bit is also the one I tend to use most with my cordless drill, I keep one in the nail set holder of my tool pouch, so it's always ready to go. It is just the right size to make a hole in metal enclosures for the draw stud of my 1/2" Greenlee manual KO punch, which I will often use to make the hole for the draw stud of the larger KO punches, so it gets used quite a bit for that. With this size bit, over time I usually seem to end up snapping off the 1/8" tip then grinding it down to a new larger point so I can continue to use it. So far, this bit has managed to keep its tip, so not sure if it's just luck or if maybe there is something to the titanium nitride coating after all, but either way I'm happy with this step-drill and will buy again.