Capable of conforming to concave, flat and irregular surfaces.Excellent for blending, cleaning welds and removing corrosion, rust, or scaling.Excellent for grain, antique, matte and satin finishes, finishing aluminum extrusions and applying an inline brushed finish on aluminum and stainless steel.Available in slotted keyway arbor or with 5/8-11 for use on a wide variety of portable finishing machines., Must be used on burnisher equipment. Not for use on traditional right angle grinders..Slower speed = Better performance.Fine grades have a coarser effect at low speed. Coarse grades have a finer effect at high speed.Heavy pressure will result in increased wear. Apply only light pressure for best performance.Non-woven wheels provide a smoother finish.