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

Central Pneumatic 25 lb. Black Aluminum Oxide 70-Grit Abrasive Media

Depending on whether you need a small jar for polishing or bulk quantities for sandblasting, you can find aluminum oxide at the following locations:

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

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

: Best for affordable, bulk blasting media. They typically stock 25 lb and 50 lb buckets of 70-grit black aluminum oxide.

Amazon.com: Aluminum Oxide. $25 & above. Get It by Tomorrow. Amazon.com Go to product viewer dialog for this item.