4 X 21 60 Grit Premium Woodworking Sanding Belts 9Pack

4" X 21" Abrasive Sanding Belts. 60 grit. Aluminum Oxide (A/O). Closed coat, heavy X weight cloth backing. High quality and long lasting industrial abrasive sanding belts work great on non ferrous and ferrous metalworking applications, (including aluminum, steel and stainless). X-wgt material provides stiff backing for working with dense metals. Resin over resin bonding. Bi-directional tape joint. Dry applications. Assembled in USA.