KNIFE
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Frequently asked questions
Common questions about KNIFE from 3G Electric.
What are the key differences between bastard, second, and smooth cut grades in KNIFE double-cut knife files?
KNIFE double-cut knife files are available in three cut grades: bastard, second, and smooth. Bastard cut has the coarsest teeth, designed for rapid material removal on rough surfaces or heavy deburring. Second cut is a medium grade, suitable for general-purpose shaping and finishing. Smooth cut has the finest teeth, used for final surface finishing and light deburring where a smoother surface is required. The choice depends on the material hardness and the desired surface finish; for example, bastard cut is often used on soft metals or for initial stock removal, while smooth cut is preferred for hardened steel or precision fitting.
Can KNIFE double-cut knife files be used on stainless steel or hardened materials?
KNIFE double-cut knife files are made from high-carbon steel and are suitable for use on a range of materials including mild steel, aluminum, brass, and plastics. For stainless steel or hardened materials, the file may wear more quickly due to the material's hardness. It is recommended to use a file specifically designed for hard materials, such as those with carbide or diamond grit. For occasional use on stainless steel, a smooth cut grade may be more effective to reduce tooth loading and prolong file life. Always use a file card to clean the teeth and avoid galling.
What is the typical application for a KNIFE double-cut knife file with a single-cut edge?
The single-cut edge on a KNIFE double-cut knife file is designed for finishing narrow surfaces, such as the sides of slots, grooves, or internal corners. While the double-cut face is used for broader flat or convex surfaces, the single-cut edge provides a finer, more controlled cut on edges and tight spaces. This dual functionality makes the file versatile for tasks like deburring keyways, cleaning up weld beads on edges, or fitting components where access is limited.
How do I select the correct length and width for a KNIFE double-cut knife file?
Selection depends on the workpiece size and the area to be filed. For small parts or detailed work, a 4-inch or 6-inch file (without tang) with a width of 1/2 inch to 11/16 inch is appropriate. For larger surfaces or heavier stock removal, an 8-inch or 12-inch file with a width of 7/8 inch to 1 1/4 inch provides more cutting surface and leverage. The file length should be at least 1.5 times the length of the surface being filed to ensure even stroke and effective cutting.
Are KNIFE double-cut knife files compatible with standard file handles?
Yes, KNIFE double-cut knife files are designed with a tang that fits standard file handles. The tang is the pointed end opposite the cutting face, and it is inserted into the handle. Handles are sold separately and are typically available in plastic or wood. Ensure the handle size matches the tang diameter; for example, a 4-inch file may require a smaller handle than a 12-inch file. Using a handle improves grip and safety during filing operations.
Does 3G Electric supply KNIFE products?
Yes — 3G Electric (S) Pte. Ltd. supplies KNIFE products. We stock the KNIFE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.