Gold Reinforced Aluminum Oxide Abrasive are externally reinforced for use on table-top machines. These Type 01 cut-off wheels are ideal for cutting light tubing, angle iron, exhaust pipes and steel extrusions. Use Long Life chop saw wheels on machines rated 15 amps or higher. Use Fast Cut chop saw wheels on older, lower-powered machines. This product is part of the Carborundum GOOD product tier group.