: Ideal for business-grade brown aluminum oxide in specific mesh sizes (e.g., 100 mesh) for heavy-duty industrial use.

: Carries high-quality blasting abrasive, such as the ALC 25 lbs 60-grit , though some items are online-exclusive and cannot be bought in-store.

For rock tumbling, glass etching, or dental work, finer grades are required: Aluminum Oxide - Amazon.com

: A reliable source for various grit sizes and quantities, from small 12 lb bags for hobbyists to large industrial orders.

: Offers diverse options, including specialized white aluminum oxide and ultra-fine polishing powders through their online marketplace. Specialized Polishing and Lapidary Suppliers