TEKTON 6681 12-Inch Half Round File Medium-coarse, second-cut grade is ideal for deburring, shaping, and sharpening Round side with single-cut teeth puts a smooth finish on interior contours and holes Flat side with cross-cut teeth removes material quickly for fast rough-shaping of larger surfaces and edges Large, comfortable poly handle gives you a sure grip for controlled strokes and pressure Versatile machinist's file can be used on metal, plastic, and wood