The easiest way I have found to cut solder or sheet is with an old
fashion paper cutter like we had in school the knife kind they come
in all sizes and I'm sure youi can buy new ones but I don't think
they are as heavy duty as the old ones I got mine on ebay it is 8
inches and I paid $12.00 for it. I think the 24 inch ones would be a
little over kill but you could cut thicker sheet.