This is a junk Makita impact driver set. Two units have been tested: * 18v (Green): Operable (with shaft wobble and unusual noise) * 18v (Pink): Malfunctioning * 14.4v (Blue): Operable (with faulty brake and unusual noise) * Two 18v units: Untested Suitable for parts. Please understand that this is a junk item, and no claims will be accepted.