Specification:Item type: Triangle FileCondition: 100% brand newMaterial: T12 carbon tool steel Weight: Approx. 150gColor: As picture shownSingle Size: Approx. 16x0.5x0.5cm/6.3x0.2x0.2in File use precautionsThe chain of the fitter can be divided into a coarse tooth, a middle tooth, a fine tooth and an oil light button according to the size of the chain teeth.
1. If the workpiece to be processed is low carbon steel, coarse gear keys can be used;
2. For medium and high carbon steel, use medium tooth key.
3, fine tooth enamel can be used for shallow surface finishing; 4, oil light button for smooth surface treatment.
According to the type of material of the workpiece to be processed, the selection of a suitable file will not only save labor and time, but also prolong the service life of the key knife.
In order to extend the life of the file, the following rules must be observed: 1. It is not allowed to use a new key to set the hard metal; 2. It is not allowed to use a boring tool to quench the hardened material; 3. Forgings and castings 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 first uses one side, and when the surface is blunt, the other side is used; 5. When boring, always use a wire brush to remove the chips on the sprocket; 6. Files cannot be overlapped or stacked with other tools