By turning the rotation number adjustment dial, you can freely change the rotation speed between 10,000 - 30,000 rpm. Equipped with a shaft lock function, you can change the bit with a single wrench. Smaller and lighter than a standard router, it is easy to use, and comes with a plunge base that can be engraved with a trimmer can. The motor part can be removed and replaced to suit your purpose, such as the trimmer base made by Makita (sold separately), sloped base, offset base, etc.