Expertly engineered with solid carbide, the Astra Coated Bits&Bits 1/4" Spiral Up-Cut Flush Trim Router Bit boasts a 1/4" shank diameter, making it the go-to choice for trim routers and router tables. The 1/4" diameter facilitates precision cutting in tight curves and complex patterns. The spiral up-cut design is adept at efficiently ejecting chips upward, which not only ensures rapid material removal but also leaves behind a clean, smooth finish. The inclusion of double bearings further augments the stability during use. Equipped with a proprietary Astra coating, this router bit is capable of achieving faster cutting speeds and higher feed rates, while also offering an extended tool life. Proudly made in the USA by Bits & Bits, this router bit is synonymous with exceptional quality and is perfectly suited for professionals and rigorous applications.