YDLQWCZ Long Torx Security Screwdriver Bit Sets 6 Inch Length T8 T10 T15 T20 T25 T27 T30 T40 S2 Steel Torx Security Head Drill Screw Driver Drill Set (8Pcs 150mm)

I used these with my Milwaukee torque driver and had no issues with breaking bolts free and turning them. I did not use the torque driver to tighten the fasteners, so I do not have any information on their durability under impact conditions (I personally would not suggest or try that application myself). I did not encounter any issues with them not being straight. Worked great for me, but if I was a professional mechanic who relied on these daily, I might be looking for something more high end.

seems like decent quality considering the price of 15 dollars. all are secuirty torx and seem to work fine driving in non security torxes.mostly got for product disasembly not actual hardware driving so wont see construction type use.shipped in a little manilla envelope and ziplock bagbag says made in chinahappy overall with them

I use these with a cordless screwdriver. They're very good for getting at recessed screws and don't wobble at speed. They're well machined and have been able to break loose snug screws without the bits taking any damage.Great bits overall.

I needed a Robertson screwdriver to fit deeply recessed screws in furniture I had to repair. The Robertson driver that is standard for electrical outlets was too big. But there's an amazing range of smaller drivers that differ just a little bit. It's not like a #2 Philips driver! With this set of Robertson bits I was able to find a perfect fit with a narrow shaft to reach the recessed Robertson screws.

This is an amazing product for me because it solved a huge issue. I have over a half dozen APC UPS units that are going to be needing a replacement battery eventually. I have already replaced one. The battery is located inside the unit and the only way to replace it is to take four screws out of the bottom. The problem is that all four screws are located inside a 3.5" deep screw channel and almost all #2 Phillips screwdrivers have a 1/4" shaft which is will not fit inside the screw channels. The bits have a narrow shank which does fit. I can't thank the manufacturer enough for making these.Don't buy these because they are or are not magnetic, nor buy them for strength, although they seem plenty strong enough for what I do. Buy them because they are thin, long and have the right tip to reach down into unusual applications.I would have gladly paid 2-3 times more for these, they are that good.