In-Plastic Insert Cut & Chamfer System features one tool body with 13 unique solid carbide insert knives designed for cutting plastics, PCB boards and more. Solid carbide insert knives sold separately. Industrial quality solid carbide insert knives produce smooth, chip-free cuts and last at least twice as long as comparable solid carbide bits. The unique tool body was engineered to quickly interchange inserts while mounted in CNC machines to eliminate down-time and to maintain consistent cutting accuracy. Engineered to only penetrate spoilboard by 0.2mm! Tool bodies expertly balanced for virtually no vibration to provide superior cutting results and less stress on the tool & spindle. Cuts and quad chamfers top and bottom of both sides in one pass without melting the edges. Specifically designed for use with all forms of plastic sheet materials for signmaking, lettering and display case industries. In-Plastic CNC router bits are designed for use in the following materials: Plastic Acrylonitrile Butadiene Styrene (ABS) Acetal Acrylic Alupanel Copolymer Coroplast* Corrugated Polypropolyene Correx Boards Delrin Ethylene-Vinyl Acetate Foam Board Gatorfoam** High Density Polyethylene (HDPE) Lucite Mechanical / Engineered Plastics Nitrile Rubber Nylon Polyethylene (PE) Polyethylene Terephthalate (PET) Plexiglas Polycarbonate Polypropylene (PP) Poly (methyl methacrylate) Solid Surfaces Styrene-Acrylonitrile Styrene-Butadiene Rubber (SBR) Styrene-Isoprene-Styrene (SIS) Teflon Ultra High Molecular Weight Polyethylene (UHMW) Wood* Coroplast is soft plastic cardboard made with super soft, super flexible PVC. ** Gatorfoam Foam Board, a polystyrene foam board bonded between two layers of Luxcell wood-fiber veneer.