Uneeda aluminum oxide cloth sanding belts for portable and narrow belt sanders, in 3 x 21, 3 x 24 and 4 x 24 in. Aluminum oxide is the everyday grain: it costs less per belt than zirconia and is the right call for wood, paint and general shop work where you are not pushing hard on the machine.
Belt size has to match the sander exactly. Read the width and length on the sander's plate or the old belt before ordering, and match the grit to the step: coarse for stock removal, then finer grits to finish.
