- Crush, grind, and mill various materials
- Select from 10 different grinding ball materials to suit your application
- Compatible with all Cole-Parmer® plastic grinding vials
- Disposable grinding ball ideal for pulverizing soft, brittle materials and for mixing powders
- Measures 9.5 mm (3/8 in.) in diameter
Hardness: Mohs 1 ½ Typical composition: Major Element – C