Brand New Ball Nose End Mill 1/8” Shank 8 Deg 1mm Tip Quark Smooth Coated Carbide CNC Spiral Router Bits for Wood & Metal Carving Engraving (5PCS) Highly effective in machining various types of Woods and Steel(HB125-400), such as Aluminum, Plexiglass, Cast Iron, plywood and MDF Surface finish < Ra 0.03μm, friction coefficient < 0.1, reducing cutting resistance and enabling high-speed cutting, with the QUARK coating Compatible with CNC milling machines and Hand-held Router, This ball nose end mill can perform deep and detailed carving