Feature:1. CEMENTED CARBIDE MATERIAL: Made of premium cemented carbide material, this router bit is strong and sturdy, wear and impact resistant, ensures a long life span.2. FINE WORKMANSHIP: Router bit is well crafted with fine appearance and even threads, which can make clean edges and top surfaces.3. APPLICABLE MATERIALS: This router bit is suitable for wood, medium density fiberboard, particle board and dense plywood Please avoid cutting black metal and other materials such as steel, iron, sand, etc.4. WIDE APPLICATION: This 1 or 4 shank trim bit is an ideal tool for for kitchen and bathroom doors, office cabinets, floor tables, bedroom shelves, frames, wall, and more.5. COMPATIBLE WITH: Used for CNC and other automatic engraving machines, as well as hand and table assembly, portable engraving machines.Specification:Item Type: Compression Flush Trim Bit Material: Cemented CarbideSpecification: 1 or 4 x 1 or 4 x 1 x 3 (inches).Package List:1 x Compression Flush Trim Bit 1 x Storage Box