Product Description Material: Carbide Sizes Available: - 1: 65 x 19.05 mm - 2: 70 x 19.05 mm - 3: 83 x 19.05 mm - 4: 97 x 19.05 mm Quantity: 4 pieces Package Includes: 4 x Engraving Machine Bits Key Features: 1. Versatile Functionality: Ideal for trimming, edge treatment, grooving, and creating three-dimensional clearance angles. Perfect for all trim applications, these bits can cut through various materials including plywood, hardwood, softwood, and more. 2. Durable PTFE Coating: Each bit features a heat-resistant PTFE coating that prevents the buildup of wood chips, resin, and asphalt, ensuring excellent wear resistance and extended durability. 3. Anti-Reverse Design: Constructed from solid hardened steel, these bits are designed with an anti-reverse and CNC balanced design, complemented by high-quality guide bearings for smooth operation. 4. Safety Features: The sharp and smooth blades are designed with an anti-kickback feature, making them safe and effective for trimming and grooving tasks. 5. Wide Application: Suitable for woodworking projects involving hardwood, particleboard, MDF, and acrylic. Compatible with engraving machines and trimmers for optimal performance.