Inspect and measure workpieces to mark for cuts and to verify the accuracy of cuts, using rulers, squares, or caliper rules. Adjust saw blades, using wrenches and rulers, or by turning handwheels or pressing pedals, levers, or panel buttons. Mount and bolt sawing blades or attachments to machine shafts. Set up, operate, or tend saws or machines that cut or trim wood to specified dimensions, such as circular saws, band saws, multiple-blade sawing machines, scroll saws, ripsaws, or crozer machines. Inspect stock for imperfections or to estimate grades or qualities of stock or workpieces. Monitor sawing machines, adjusting speed and tension and clearing jams to ensure proper operation. Sharpen blades or replace defective or worn blades or bands, using hand tools. Guide workpieces against saws, saw over workpieces by hand, or operate automatic feeding devices to guide cuts. Clear machine jams, using hand tools. Lubricate or clean machines, using wrenches, grease guns, or solvents.