For filing holes, large fillets and concave surfaces. Shape: Tapered towards the point. 4" and 6" fully pointed, 8" and longer... File handle developed according to the scientific ERGOâ„¢ process. Suitable for deburring work. Shape: Edges and surfaces tapered towards the tip. Features: 4in and 6in fully pointed, 8in and longer semi-pointed. Type of cut: 1 = Bastard, 2 = Second, 3 = Smooth. 12-Inch file Width of 1 7/32-Inch 20 teeth per-Inch Type of cut bastard.