Notice: Please confirm the Ball Diameter you are ordering. Size - 20mm Diameter Precision Balls One set of stainless steel ball includes: 2pcs 20mm; 2pcs 15mm; 2pcs 12mm; 2pcs 10mm; 4pcs 8mm; 8pcs 6mm. Prefect grinding effect to mill powder down to... With their low maintenance requirements, these balls provide hassle-free and efficient operations, saving you time and effort. It is austenitic stainless steel and has a higher corrosion resistance than ordinary steel. 6mm Steel Rod Uxcell 4-Pack Stainless Steel Rod End Bearings - M8 Bore With M8x1.25 Thread & Jam Nuts Included M8x1.25 Thread Bearings Buy Uxcell Bearing Balls Metric 304 Stainless Steel G100 Precision Rolling Ball 20mm at For a wide range of applications including bearings, automotive components, valves, machinery, and more. Choose from a wide range of sizes to find the perfect fit for your specific application requirements. Good corrosion resistance, heat resistance, low-temperature strength and mechanical properties. 20mm Steel Balls Uxcell 5/16" Bearing Balls 304 Stainless Steel G100 Precision Balls Bearing Replacement Balls Applications - Maintain product that uses steel balls, such as ball bearings, turntable, drawer slides, casters, door locks; DIY projects like a keychain, or adding weight for your projects, etc.