Specification:Item Type: Triangular FileCondition: 100% newMaterial: T12 carbon tool steel Approximate weight. 150gColor: as shown in the pictureSingle Size: Approx. 16x0.5x0.5cm/6.3x0.2x0.2inchFile Usage PrecautionsThe installer chain can be divided into coarse tooth, medium tooth, fine tooth and oil light button according to the size of the chain teeth.1. If the workpiece to be processed is low carbon steel, thick gear wrenches can be used;2. For medium and high carbon steel, use a medium tooth wrench.3, fine tooth enamel can be used for shallow surface finishing; 4, Oil light button for smooth surface treatment.Depending on the type of material of the workpiece to be processed, selecting a suitable file will not only save labor and time, but also prolong the life of the key blade.To extend the life of the file, the following should be observed rules: 1. It is not allowed to use a new wrench to fix the carbide; 2. It is not allowed to use a piercing tool to quench the hardened material; 3. Forged and cast parts with hard or sticky sand must be ground on the grinder before they can be cut with a semi-sharp trowel;4. The new file uses one side first and when the surface is dull, the other side is used; 5. When drilling, always use a wire brush to remove chips from the sprocket; 6. Files cannot be overlapped or stacked with other tools; Package list:10 triangular files