Measure 5 times, cut once...

For me I bought these to help with plywood size type rip cuts. Once you get the clamp square to use it as a guide it works well. But thats the issue I had. It seemed to me that when you "set the clamp" this thing has a tendency to move..you need to keep checking with a ruler/square to make sure the thing is totally straight. The issue I see are the clamps themselves. I don't know how they could be done better, but maybe don't make out of plastic? They are not that smooth either. Each clamp has markings like a ruler, but I found that because of the clamps on the bottom, its pretty much impossible to use them for marking etc as they clamps do not lay flat especially on a long piece. They also don't clamp well on thinner material like 1/4 or 1/8 plywood. I do use them but find myself wondering...can't they make a clamp that when you clamp it the clamps automatically square it up? Oh well. I like them but wanted to love them.

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