[High-Quality Material]: These steel balls are crafted from the finest quality Gcr15 bearing steel, known for its remarkable resistance to pressure and abrasion. This top-notch material ensures the longevity and optimal performance of the steel balls. [Excellent Features]: Superior in terms of quality, these G10 precision industrial bearing steel balls come with a high hardness rating and exceptional load-bearing capacity. Such features make these balls ideally suited for various heavy-duty industrial applications. [Precise Measurements]: Each steel ball measures 6.35mm (or 1/4 inch) in diameter, with a precise tolerance of ±0.002mm. This precision speaks to the commitment to detail and accuracy in design, ensuring these balls can perform exceptionally in even the most demanding settings. [Large Quantity]: This set includes a total of 200 steel balls. This generous quantity is sufficient for multiple projects or replacements. Whether you're an industry professional or an enthusiastic DIY-er, you'll find plenty of opportunities to make use of these high-quality steel balls. [Versatile Use]: Primarily used in various industrial applications, these steel balls can be used in a wide array of products, such as hardware tools, electrical appliances, casters, bearings, and more., Manufacturer: Akozon