The clamps function like you expect (use a 1/4" socket driver), however I noticed that my magnetic bit tip, was able to hold clamp in mid air - from anywhere on the clamp! I suspect these are a lower grade ferritic stainless that may actually corrode. Austenitic (304,316,etc) stainless doesn't (normally) have magnetic properties and is less likely to corrode in our brewing environment.I used em anyways. I noticed that on 1/2" tube they have about a 1/4" tab remaining once tightened down.The edges are not sharp like other clamps and the rounded corners on the tab, thankfully don't cut soggy hands.
