Park SR2, can't help with cheap as the best price is £29.99, plus you have to change the chain (which is easy as it's bolted together, not riveted) to use it with ⅛" sprockets, but the long and comfortable handle is worth the price compared with cheap ones stamped from sheet.
You can get one that isn't stamped for much cheaper than the parks one... Buggered if I can find a link for it, but I've got a combined chainwip/lockring tool, that's plenty beefy and cost me about £15. Get two and have one 1/8th and the other 3/32 for the same price as the parks one.
Park SR2, can't help with cheap as the best price is £29.99, plus you have to change the chain (which is easy as it's bolted together, not riveted) to use it with ⅛" sprockets, but the long and comfortable handle is worth the price compared with cheap ones stamped from sheet.