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Thanks! Will do!
Finally something I might be able help with. Are you talking about electic or the hand held ones? The big eleictic ones are pretty much one size grommet. Ether a #l about 1/4" diameter hole, #2 about 3/8" and so on. Theyuse the same grommets in both the hand held and the machine. If it was me I would go for the hand set for the cost and veriaty of sizes you could do.
Well, neither the handheld or the electric ones. I was looking at the handheld ones originally, and then I saw the ones that resemble a drill press. They sit on a tabletop and have a handle and seem more stable and durable. They also have some interchangeable dies.
The table top style would be a good one. You could use thicker mat. with that then you could with a handheld one.