Many years ago I bought a cheap set of T-Handle Eklund allen keys. They lasted for about 10 years and now they are all worn out.
Well it was time to replace the old ones and I went with the good stuff, Bondhus T-Handles, they’ll run about $20 at amazon. They come in 2, 2.5, 3, 4, 5, 6, 8, 10,mm sizes. I like Ball head allen wrenches too, but not in a t handle.
The quality of these is top notch, they weigh about 2 pounds each! They don’t bend, they don’t flex unlike the Eklund’s which twisted and flexed like there was no tomorrow.
If you work on your bike a lot, these are worth getting.