Amazon: grinding ball
White Ceramic Grinding Balls - Size: 13mm - Weight: 1kg - Milling Media for Ball Mill - by Inoxia. . Kutzall Extreme Sphere Rotary Burr 1⁄4" Shaft, Very Coarse - Woodworking Attachment for Bosch, , Milwaukee, Makita Tools. Abrasive Tungsten Carbide, 1" (25.4mm) Head Diameter, SX-1C.
