If they are rusty, start spraying them with Blaster or the equivalent. The size should be T50 but a T55 bit fits better, and you might buy one with a lifetime warranty, you will break the cheap ones. I bought a T55 from Snapon and broke it too. At least I can exchange it.
yep. Hose 'em down! I have a bunch of Chinese ones and have used them so many times and have yet to break one. I had a Craftsman and broke it in a week:toothy10:. try a T45, thats what mine took.