Wide Compatibility: Suitable for metal materials with a hardness of HRC 18-68, including steel, copper, and tempered workpieces. Compatible with all conventional and CNC lathes, but not with machining centers or milling machines. Not suitable for non-metals such as acrylic. Durable Metal: This lathe roller burnishing tool is made of high-quality metal and equipped with high-hardness bearing steel balls, providing excellent wear resistance and high precision. The surface is coated with black rust-proof powder coating to extend the service life. Cost Savings: The tumble burnishing process reduces tedious polishing and grinding steps, effectively reducing processing costs, while improving surface consistency and reducing defective rates, making your products more competitive. Mirror-Level Finish: This tool can replace traditional grinding with turning, significantly improving the surface quality of the workpiece, achieving a near-mirror-like smoothness, improving surface roughness, and enhancing the overall product quality. Tip: The default installation height of the tool is 25 mm (1 inch). If necessary, the tool holder can be milled to adapt to your equipment to ensure optimal clamping state and processing stability. Color: As Shown Material: High Speed Steel Package Contents: 1*pcs metal lathe