I think this one appears to be fecked, I've now got it stuck in the middle not turning either way. Wasn't too dear, but a bit of a gamble with old tools. I don't think it was the seller on the make.
Only reason I didn't buy a new cheapy was mixed reviews on whichever one I looked at.
Purpose was extra help with Invacar screws where I don't have power at the lock-up.