Very pleased - the bits immediately felt high quality and well made, there was no doubt they were all faithful and would spin smoothly. Someone in the reviews complained about the box but mine is very nice, easy to open and the plastic clip on top is strong. Where these drill bits shine is in the drilling itself :) - I work with race car prep and tuning, I have to fabricate a lot of stainless steel and these bits cut into it with no problem, the sharp tip design seems good too because the bits into tubes easily too Drill hole, the initial "bite" is very good. I really hope this company introduces more products like step drills as I will definitely buy their products.