I run low voltage lines everyday, about 2 homes a day . Which means I’m drilling thru studs like crazy 10 to 20 holes , sometimes even more per house. One of the problems you run across is getting hung up on a nail which can really twist put you wrist or shoulder if your not ready for it. These bits just cut right thru nails like nothing . I’ve been using them for about 2 weeks now and will buy a 2nd set just as a back up! Cuz I love them so much! The length on these are great also , really long and ha info the roll up punch to hold them all in is a great way to keep them safe when your done with them. Great quality , these bits are probably the best I’ve used within the last 2 years of working everyday drilling thru studs. Hands down the best!