Baoke 4 Flute Carbide End Mill Flat Bottom CNC Machine Tool Endmill Flat Longer Shank Cutting Tools Balzers Silicon Nano Coating. Customization Options: Full customization, minor customization, and flexible customization available from samples or designs. Fast Delivery for Stock: Standard stock carbide endmills can be delivered within 2 days. Non-Standard Delivery: Non-standard carbide end mills can be delivered within 10 days. High Hardness Options: Available in HRC 45, 55, 60, 65, and 68 for various material requirements. Wide Material Compatibility: Suitable for steel, stainless steel, cast iron, aluminum, and wood machining. Balzers Silicon Nano Coating: Features AlTiN or AlTiSiN coating for enhanced performance and durability. Low MOQ: Minimum order quantity is only 1 piece, allowing for flexible purchasing. Global Shipping: Supports UPS, FedEx, DHL, TNT, EMS, and sea shipping methods worldwide.