1. High-Quality Material: The 4PCS 3.175mm UP & DOWN Cut Single Blade Spiral Carbide Mill Tool is made from Tungsten steel, ensuring durability and for your CNC routing projects. 2. Precision Cutting: Featuring a unique UP & DOWN cut design, these end mill cutter bits provide exceptional precision and smooth finishes on wood materials, making them ideal for detailed woodworking tasks. 3. Versatile Applications: Suitable for a wide range of applications, the 4PCS 3.175mm Compression Wood End Mill Cutter Bit is perfect for both professional and DIY woodworking enthusiasts looking to achieve high-quality results. 4. Easy to Use: Designed for compatibility with most CNC routers, these spiral carbide mill tools can be easily integrated into your existing setup, allowing for hassle-free operation and efficient workflow. 5. Cost-Effective Set: This set includes 4 pieces of 3.175mm UP & DOWN Cut Single Blade Spiral Carbide Mill Tools,(1pcs per size: 3.175x12x38.5mm, 3.175x17x38.5mm, 3.175x22x38.5mm, 3.175x32x55mm) providing excellent value for money while ensuring you always have a reliable cutter on hand for your projects. Colour:Silver Material:Tungsten steel Package Contents: 4PCS x 3.175mm Wood End Mill Cutter Bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.