Curved tooth "Vixen" style file cuts through aluminum, brass, steel, plastics, fiberglass, and composites without loading up. Features a coarse cutting surface on one side (10 TPI) for quick removal and a smooth cut on the other side (16 TPI) for finishing. Made in USA. For the wood handle order p/n 21528N. 12 inch in length without tip. 1 lbs (0.5Kg) shipping weight.