A8358H Flexovit Grinding Wheels - USA Abrasives 9"x1/4"x5/8"-11 Flexovit Grinding Wheel Metal, Stainless, Fast Grind. Flexovit Industrial Abrasive Wheels. These are made in the USA by Flexovit High Quality Industrial Abrasive Products. High Performance Grinding Wheels offer High Productivity, Versability, and Durability. A30S - Fast Grind offers Agressive grinding with a good wheel life. Ideal for most metals, including stainless and other hard alloys. An excellent "all purpose" spec.