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While researching bluestone patio construction, mentioned was made of the Grabo. Naturally I had to have a closer look. It is an impressive design, well thought out, even down to the carrying case. It works extremely well. If you have a need for this kind of functionality, it is a superb tool.
We have used the grabo for numerous types of material wood, tile, laminate it works fantastic better than I anticipated
StephenL –
This suction cup actually works well with sheet metal, but you have to make sure that the sheet is relatively flat when you are pulling the suction on it. If the suction does break loose, the pump automatically starts back up to achieve a suction back on the sheet. I have used this to move around 5' x10' x 16 gauge stainless steel sheets by myself and the cup locks on well and stays locked on while picking the sheet up vertically on its side. It will not pick the sheet up if it is laying flat, though you can lift one end up in order the get it up off of the sheet below it or to just help you stand it up on one edge. I use rechargeable batteries in mine and put them on charge after every use so I can't say how long normal alkalines would last in this, but I really do like the auto pump on this suction cup.
Review source: Amazon