Solid carbide 'O' flute slow spiral provides smooth finish in acrylic materials, and both soft and hard plastics. Designed for cutting the following materials: Acrylic Stone Acrylonitrile Butadiene Styrene (ABS) Corian Coroplast* Fomex Hydroxy-Terminated Polyether (HTPE) Low Density Polyethylene (LDPE) LubX Perspex Cast Acrylic Sheet Poly (methyl methacrylate) (PMMA) Polyethylene Terephthalate Glycol-Modified (PETG / PET-G) Polyoxymethylene (POM), also known as Acetal, Polyacetal and Polyformaldehyde PVC Sign Foam StarBoard (King StarBoard 'R') High Density Polyethylene Sheet (HDPE) Teflon Thermoplastic Polyolefin (TPO) Urethane* Coroplast is soft plastic cardboard made with super soft, super flexible PVC.