They've worked on every hose clamp I've used them on, all of the flat band springy type.
I got mine at Sears just 'cause I had a $25 gift card. I haven't checked out the cheap ones, so I'm not real sure how they compare.
I have 2 of the regular hose clamp liers, the cheap ones, that I had before I needed the ones on the wire, and they work fine and have done so for years. The remote things seriously would have made the heater core replacement on my '92 Lumina a total breeze. Three panels inside then just the heater core hose clamps in the engine bay. Which were almost impossible to get at any way you tried without the remote clamp pliers, which my hubby's (then-bf) stepbrother told us about the next weekend (you should have seen the hubby, almost upside-down in the engine bay, with a pair of bent pliers and his arm twisted at a dangerous angle, just to get the hose clamps where we could get at them more easily). Hubby just about had apoplexy when he heard those things existed, so I bought 'em first chance I had.