The Deluxe Rotary Bit Set gives a newer power carver everything they need (and maybe a little more) to get started. The green bits are made out of carbide designed to rapidly remove material to all the carver to rough the project to shape. The fluted carbide bits can still remove a fair amount of material, but they will leave a smoother finish. The diamond bit set includes bits for adding the final details into a project as well for cleaning up the project. Use them much like you would sandpaper. These bits can be used for a wide variety of projects. (Bits may not be exactly what is pictured. Substitutions of a similar bit may be required based on availability). All burs are 1/8" shank.