I believe just about all the tool manufacturers of today offer lifetime replacement warranties.
While I appreciate the (mostly) "no questions asked" policies of Snap-On and Craftsman, I prefer to buy from others. In the case of Snap-On, it's the initial cost of paying the equivalent price of two or three tools to get that forever free one. And with them it's great if you have bought the tool from the local guy with the truck. Then you get great service of the warranty. If you didn't buy it from him, it's grumble and wait.
In the case of Craftsman (Danaher) tools, it's that I actually need the warranty to which I object.
By the way, while I am NOT assuming you might be doing anything wrong, but the second-most common reason for failure that I see with Torx screws on tooling is the mixup of Torx and Torx Plus wrenches and screws. While you can technically use a Torx bit on a Torx Plus screw (never the other way around), it will usually damage the bit or the screw.
The primary reason for failure is over-tightening. I don't think I've ever seen a Torx screw come loose, but they do seem to get tighter. This seems especially true on milling cutters for some strange reason. I only have one torque-limiting bit tool, but for when I do use it I never get screws loose, stuck or stripped.
I purchased a set of Internal, External, and Security bits from Lisle but my 35 mm appears to have suffered from the first use which is regrettable and not appreciated. I will check out the other suggestions.
In my 48 years in the workforce, the most-common-by-far causes of internal-wrenching failures has been either 1) not putting the driver bit all the way into the fastener socket, or 2) using a one-size-too-small driver. Sure, there are manufacturers that make superb quality driver bits, manufacturers that make good driver bits, and manufacturers that make low-quality driver bits, but I've seen far more "organic failures" leading to hardware failures than just plain hardware failure.