Features Versatile CNC Tool: Designed for milling machines and desktop woodworking engraving machines, this surfacing router bit is a versatile tool suitable for various CNC handheld and desktop milling applications. Heat-Resistant PTFE Coating: The heat-resistant PTFE coating ensures a consistently smooth surface cut, providing strong abrasion resistance and anti-sticking properties for enhanced performance and durability. Wide Material Compatibility: Suitable for cutting solid wood, particle board, plywood, medium density fiberboard, and different wood composite materials, this flattening router bit delivers smooth cuts without burrs across a variety of materials. Durable Carbon Steel Construction: Made of high-quality 45# carbon steel material, this 1/4 shank router bit is strong and durable, offering a long service life for reliable woodworking operations. High-Strength Wood Trimming: Ideal for grooving and trimming wood, this 4 flute router bit possesses high strength and is not easily damaged, making it a dependable choice for woodworking tasks. Specification: Item Type: Surfacing Router Bit Material: 45# carbon steel Tool Handle: 1/4in Cutting Length: 1/4in, 5/16in, 3/8in, 1/2in Uses: Used for wood grooving and trimming Package List: Item Type: Surfacing Router Bit Material: 45# carbon steel Tool Handle: 1/4in Cutting Length: 1/4in, 5/16in, 3/8in, 1/2in Uses: Used for wood grooving and trimming Note: Not suitable for cutting metal or other non wood materials. Package List 4 x Router Bit 4 x Plastic Box