4.763mm-300pcs Solid Copper Balls High Precision 0.9mm-45mm Industrial-Grade Solid Precision Copper Balls Small Metal Balls Corrosion-Resistant

What are 4.763mm Solid Copper Balls? High-Precision 0.9-45 mm Brass and Copper Spheres for Industrial Use
✔️ 300 pcs per pack; solid copper/brass balls; corrosion-resistant; precise spheres

These solid copper balls are precision‑manufactured metal spheres designed for bearings, weights, calibration, and fixtures across industrial, lab, and craft settings. They cover a wide diameter range from 0.9 mm up to 45 mm, making them handy for machining, balancing, jewelry making, and educational projects. Each ball is produced from either 99.9% pure copper material or H62 brass material (copper content 60.5-63.5%), ensuring solid integrity throughout use. Packaging options include plastic bags or paper boxes, with a typical order containing 300 pieces per set.

✅ Material: solid copper or brass with options of 99.9% Cu or H62 brass (60.5-63.5% Cu)
✅ Size range: 0.9 mm to 45 mm in precise, standardized diameters
✅ Precision: high‑quality machining yields near‑perfect spheres for smooth rotation
✅ Corrosion resistance: copper/brass alloys designed for durability and longer life
✅ Packaging: plastic bag or paper box, 300 pieces per order
✅ Applications: suitable for bearings, weights, calibration, jewelry making, and lab experiments
✅ Notes: manual measurement may introduce minor dimensional variation; color may vary by monitor
💡 What is a solid copper ball used for in precision machining and crafting? These copper spheres are handy in a range of tasks from technical fixtures to decorative projects. - Bearings and contact surfaces where a true, round ball is needed - Calibration, balancing, and weight reference in educational or lab work - Jewelry making, craft projects, or model components requiring corrosion resistance - DIY fixtures and test rigs that benefit from stable, uniform spheres Using these copper balls can boost accuracy, longevity, and reliability in both industrial setups and hands‑on projects.