Of medium coarseness, the second-cut TEKTON 6 in. Slim-Taper Triangular Saw File is a versatile machinist's file for working with metal, plastic, and wood. Made to remove material at a slower rate with each stroke, the single-cut teeth create a smooth finish when you're deburring, shaping, and sharpening. The equilateral-triangle profile smooths internal angles, cuts V-shaped notches, and sharpens saw teeth. A large, contoured poly handle gives you a comfortable, nonslip grip for controlled speed and pressure with every stroke.