according to the information you site,
the t handle appears to be 1/4" to 1/2" square and the extractor ends are all smaller than that.
best of luck, if the broken screw is hardened, these may not be useful - as they work by being tapped/driven in to the steel hole after you drill the broken unit.
I usually use the Lisle tap sockets. Then you can use your normal 3/8 tools. The adjustable taps usually ****. Also may I recommend Irwin extractors. They are only a few dollars more and will most likely work much better.
Can you explain what you mean? I thought you just jam in into a stripped Phillips or Torx, maybe lightly hammer tap, and then twist it out. What do you mean by dill and screw hole? Oh, you mean, if the above stripss, you need to drill a round hole and then jam the extractor in? No, I don't think the screw in question is hardened.
The Alden Grabit type extractors have a drill bit on the opposite end and only require a very shallow dimple. They drill into a stripped phillips head without needing to go into the thread at all. You have to try it to believe it. I have used spiral and straight extractors and gone much deeper with less success. I have seen what looks identical to the Grabit marketed under other names. Don't know how they compare. The funny part is that after you get the screw out it actually takes a little effort to separate it from the extractor. It grabs that well.You cant just jam it into a phillips or torx. You dont have enough depth. Or right sized/shape hole. You need to drill it out first. Then tap the extractor in, not jam or hanmer the living **** out of it. If it cams out or slips hammer a little harder. The extractors usually have drill size on it. Also use some penetrating fluid, give the head of stripped fastner a few blows with hammer to shock it, heat works wonders, drill with a left handed twist drill. Try to extract with cold chisel, hell might even have to drill it out to the minor diameter of threads. Always a fun time.
Oh also you dont need a handle for extractor.. wrench works fine
Good luck
