Collet chuck adapter with nut - Split-bushing converters that enable collet compatibility, allowing you to use a wider range of carbide bits with your equipment. Carbide construction - Made from high-strength carbide material for durability and long life in demanding woodworking tasks. Precise grinding and heat treatment - Manufactured through precise grinding and heat treatment to deliver reliable performance and extended tool life. Designed for trim routers - Specifically developed for conversions in trim routers, providing a practical and dependable woodworking solution. Use scenarios - When you need to run bits with a different shank size on a trim router, enabling flexible Bit selection without replacing the entire tool. - When converting between collet sizes to fit various carbide bits for edge trimming, profiling, or small-scale joinery. - For accurate trimming and finishing tasks in woodworking projects, such as decorative edging, inlays, and precise profile cuts.