1 piece 65Mn blue temper annealed spring steel sheet for DIY CNC processing. This sheet is designed for machinists and hobbyists working on CNC projects, jigs, fixtures, and prototypes. It combines the elasticity and fatigue resistance of 65Mn spring steel with a blue tempered, annealed finish to improve machinability and ductility. The material is suited to light to moderate forming, bending, drilling, and cutting operations typical of DIY CNC work. The specified thickness range is 0.5–2.5 mm, with the actual piece measuring 0.8 mm thick by 20 mm wide by 500 mm long. Key benefits elasticity and fatigue resistance: 65Mn spring steel provides good spring performance for components that must flex and to shape. Blue temper annealed finish: enhances machinability while maintaining ductility, allowing easier cutting, drilling, and forming in common tools. Easy to handle and machine: thin, manageable sheet size suitable for prototyping, fixtures, and small parts in DIY CNC projects. Consistent dimensions for repeatable results: specified material and temper help achieve predictable behavior in fabricated parts. Key attributes Material: 65Mn spring steel Finish/treatment: blue temper annealed Form: sheet Size: actual 0.8 mm thick × 20 mm wide × 500 mm long Thickness tolerance: 0.5–2.5 mm range specified Quantity: 1 piece Application focus: DIY CNC processing, prototyping, fixtures, and small springs or tension components Specifications and compatibility Thickness range for design tolerance: 0.5–2.5 mm Actual piece dimensions: 0.8 mm × 20 mm × 500 mm Suitable operations: cutting, drilling, milling, and bending with standard tools used in DIY CNC workflows Suitable for applications requiring springlike performance and moderate formability Use cases and applications DIY CNC jigs and fixtures: create precise alignment clamps, spacers, and holding fixtures that require springlike tension and reliable shape retention. Custom springs and tension components for small assemblies: leverage the elasticity of 65Mn to assemble prototypes or test rigs. Thin shims, spacers, or alignment shrouds: use the sheet to fabricate precise shims or alignment aids for CNC setups and assemblies. Care and handling Store in a dry environment to minimize corrosion; consider light surface protection if the part will be idle for extended periods. When machining, use standard metalworking tooling appropriate for carbon steels; apply appropriate feeds and speeds to achieve clean cuts without chatter. If surface rust protection is needed for longer storage, apply a light anticorrosion coating or oil. Notes The product is offered as a single piece matching the described specifications and is suitable for DIY and hobbyist CNC projects that require a bluetempered, annealed spring steel sheet with good machinability and elastic performance.