Save saw table wear and tear with a stopblock
Before you chew up your table, lower the blade to the correct depth, about 1⁄8 " below the surface of the table. Then, tape a wooden block to the column of your radial-arm saw as shown in the drawing at top. Now, whenever you raise and lower the blade, the block will prevent the blade from digging deeper into the table.
—from the WOOD® magazine shop