Sandblasting Sand, Extra Fine Grit, 100 Lb. Bag. Sometimes it's hard to find sandblasting sand for sale. Agri Supply® carries several sizes of blasting sand, including extra fine, fine, medium, and coarse grit. We also sell other sandblaster equipment and parts. Most of the items that we sell can be shipped. Please note that this product is not to be used as play sand. Specifications.