The Crescent Nicholson half-round double-cut bastard file is a versatile hand tool designed for rapid material removal on wood, metal, plastics, and other materials containing iron or mild steel. Its half-round shape—rounded on one side and flat on the other—makes it ideal for working both curved and flat surfaces, allowing you to round out holes, smooth interior curves, and finish exterior edges in a single tool.
Bastard-cut files feature a medium-coarse grade that strikes a balance between speed and surface finish, making them suitable for a wide range of general-purpose filing tasks. The double-cut design cuts twice as fast as single-cut files, removing material efficiently and saving time on projects where speed matters.
Features and Benefits
- Dual-sided double-cut design: The rounded and flat sides each feature double-cut teeth, allowing fast material removal from curved, convex, and flat surfaces without changing tools.
- Half-round shape: Rounded side ideal for filing curved surfaces and rounding out holes; flat side perfect for flat surfaces and finishing edges.
- Bastard-cut grade: Medium-coarse cut suitable for general-purpose filing on wood, metal, plastics, iron, and mild steel, balancing speed with reasonable surface finish.
- Versatile application: Works on a variety of materials and surfaces, from interior curves to exterior edges, making it a practical choice for multiple filing needs.
Specifications
- Brand: Crescent Nicholson
- Model: 21745N
- Length: 8 inches
- Shape: Half round
- Cut type: Bastard cut, double cut
- Sides: Rounded and flat
- Suitable for: Wood, metal, plastics, iron, mild steel








