Grinding Media targets attritors and ball mills. ThomasNet
High Chrome Cast Balls are appropriate for Attritors and ball mills (depending on the size of the media) and are available in the following sizes: 6mm, 8mm, 10mm, 12mm, 15mm, 17mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, and 120mm. This low cost media has a hardness of 5860 HRC.