Solid Carbide Up-Cut Spiral 2D and 3D Carving Ball Nose (Conical Ball) and Flat Bottom, Zirconium Nitride (ZrN) Coated CNC Router Bit Sets Specially designed for 2D and 3D CNC profiling and carving in plastic aluminum & wood with machines such as "i-Carver" CNC Shark® ShopBot® Datron & Carvewright™. The high-shear ball nose tips cut smooth 2D and 3D contours with reduced stepping while the proprietary ZrN coating (applied by the physical vapor deposition coating process) provides high resistance to wear sharper cutting edges extended tool life and less friction & heat buildup.Applications: A perfect bit for 3D carving Precision 2D and 3D large scale carving Great for deep profiling Dimensional signage 3D millwork 2D and 3D contouring profiling modeling and pattern making for cabinetry sign making furniture making and jewelry mold making Compatible with CarveWright™ and CompuCarve woodworking systems Perfect for model-makers on large 3D milling profiles in abrasive EPS foam and other materials Excellent for cutting: Acrylonitrile-Butadiene-Styrene (ABS) Acrylic Acrylic Stone Aluminum Brass Bronze Composite Copper Corian Coroplast®* Dibond® Ethafoam*** Ethylene-vinyl Acetate Foam (EVA) Expanded Polypropylene (EPP)** Expanded Polystyrene Foam (EPS) Extruded Polystyrene Foam (XPS) Fiberglass Fiberglass PCB Board Foam Board Graphite HDPE HDU 20lbs High Density Urethane Lexan™ MDF/HDF PALFOAM™ Phenolics Phenolic Composites Plastics Poly (methyl methacrylate) (PMMA) Polyethylene Foam*** Polylam*** Polyurethane Foam PVC PVC Foam Board Sign Board Sign Foam Titanium Tooling Board Wood XPE (Cross Linked Polyethylene) Foam *A soft plastic cardboard made with super soft super flexible PVC. **Expanded polypropylene (EPP) is a foam form of polypropylene. ***Ethafoam Polyethylene and Polylam are durable flexible closed-cell foams with excellent memory. Benefits of Zirconium Nitride (ZrN) Coating Creates a harder and tougher cutting edge allows for a prolonged cutting edge life and helps to prevent the build-up of material in the flutes while cutting Have the tendency to run/spin much faster than an uncoated tool Optimized flute geometry and low Total Indicated Runout (TIR) guarantees clean cuts essentially eliminates sanding and reduces chatter (where the machine or work piece vibrates) under high chip loads (when used with low TIR spindles) High flute volume supports high feed rates and chip loads High aspect ratio for single pass deep-reach cutting Flute geometry optimized for cutting sign foam sign board hardwoods thermoplastics and phenolic composites