Bosch CWPS1M1220 Asphalt Ductile Cutting Wheel, 12-Inch 5/32 by 20mm, 10-Pack Bosch premium grade abrasives are constructed of high quality abrasive grains, bonding coats and backings For metal, concrete, masonry, pipeline, asphalt and stainless steel cutting Easy-to-read labels are incorporated into the manufacturing process