Foundry Non-Reinforced Cut-off Wheels (12" – 20") are made with aluminum oxide abrasive for cool cutting on heat-sensitive materials. These long-life foundry cut-off wheels are used on fixed-base machines where the work is securely clamped, the wheel adequately guarded, and the design of the machine is such that the wheel operates on a controlled cutting plane for cutting heat sensitive material – to minimize burr and burn.