Features: Engineered with premium steel, this Rotary File delivers exceptionals cutting efficiency and durability, ideal for high speed grinding, carving, and finishing on metals, wood, and plastics. Features F type (single flute) for hardened materials like steel/copper and X type (double flute) for softer substrates like wood/aluminum, paired with a 6mm universally shank for broad tool compatibility. Perfect for metalworkers, woodcrafters, and enthusiasts seeking precise in industrial maintenance, artistic engraving, or workshop projects. Effortlessly tackles curved surfaces and tight angles in metal fabrication, wood sculpting, or plastic refinement while maintaining clean debris removal for dustfree workspaces. Optimized helical head design ensures smooth operate at 6,000-50,000RPM, combining versatility across materials with ergonomic performances for professional rotary tool accessories. Specifications: Product name: Rotary File Component: Steel Design: Curved round head Tip Diameter:Approx.6mm 8mm 10mm 12mm 14mm 16mm 12Option Type; Blade Type: F Type:Single Slot,(Suitable for Harder Materials) x Type:Double Slot (Suitable for Softer Materials) Applicable for Hard Materials: Iron, Steel, Copper and Other Metal Workpieces Softer Materials: Wood, Aluminum, Plastic. Round Handle Diameter: 6mm Package Includes: 1pc Rotary File note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.