Learn how to make a handy sandpaper cutter that divides a full sheet into four perfect pieces.
Attach a thin strip of wood flush along one edge of a piece of 3/4-inch plywood base that is approximately a 12 x 18-inch rectangle. Your dimensions can vary as long as it is big enough to accommodate the sheet of sandpaper. Make it the same length as the base and secure the strip with a pneumatic brad gun.
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