TEKTON 6691 6-Inch Triangular Saw File, Slim Taper Tapered triangular profile smooths internal angles, cuts V-shaped notches, and sharpens saw teeth Medium-coarse, second-cut grade is ideal for deburring, shaping, and sharpening Single-cut teeth remove material at a slower rate for a smoother finish 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