I've only used one of these bits and sed that bit on one occasion .. however, it was an interesting use. I had a torx screw in a relatively inaccessible location that was cross threaded and wouldn't come off using a small hand tool that I could reach the cross threaded screw with.

Used one of the smaller torx bits in this set along with a flexible extension and my impact driver to remove the problematic screw. i more than half expected the bit to break off as it was tiny and the screw I was trying to remove was stuck good. Got the screw removed (the bit set paid for itself with this single use!) and the bit I used looked no worse for the wear.

I'm guessing these are fairly well made .. like I said I half expected the bit to snap off as I used a small bit (T6) and my impact driver. I also liked the holder these come in. The holder grips each bit snugly the holder is made of rubber and flexes) .. keeps them organized and all together. If you lose one of these bits, it's not because it fell out of the holder .. it's because you didn't put it back when you used it last. Why is this important? Because next time you need a torx bit, the one you need (all together now) will be the one you lost.

Could have gone 5 stars but I only used one bit on one occasion. That said, my one use was probably in a way that might have voided any warranty :-). I'm a careful online shopper (read reviews, read product descriptions, read between the lines, etc.) and I made the right choice for my needs with this set.

These driver bits are awesome. I used them to repair the noisy fan on my Xbox One power supply. The cover screws were torqued really hard and needed quite a bit of muscle to get them loose but the driver bit never slipped and I got them out without stripping the screws or the bit. At such a cheap price, these bits are a steal.

I had a few odd star bits but not the smallest ones and rarely the ones that I needed. This complete set solved that problem for me and gives me the complete set, incudoing the one that I needed. Now I don't have to wait to use/fix anything that calls or one of these bit. It's a 1/4" drive bit set that is the very thing for those of you needing a set of start bits. It was exactly as advertised and is a solid product.

Fantastic complete set of tamperproof torx screwdriver heads! Needed one to get into my microwave oven to replace the magnetron but didn't know the size. (BTW tamperproof torx screws usually indicates that servicing a device should be left to a qualified repair person because of dangerous or delicate inner workings - please tread carefully!)

This set seemed promising, all my other sets broke. Don't get me wrong, these bits performed better than any other that I bought for the same purpose. A ton of small electronics or devices or tools I have are held so securely with T6-T8's with security bits, I don't know how these manufacturers expect me NOT to break my hallowed T6 bit.. Anyway long story short they got the job done then my T6 & T8 broke on the next project (Kershaw screws >:[). Nowadays I just drill out the security pin in the screws and use a solid-core bit. But all in all, I will buy these again next time I need a STURDY throw away hallow core drill bit. Note that a few of the smallest bits were made of some less stress resistant stainless that I wont need anyway. But all the others were precisely ground with no appatent defects, before I used them.
Go for it!