TEMO #321 Anti-Theft Wheel Lug Nut Removal Key 3440 Compatible for Mercedes Benz One piece anti-theft lugnut key on selected veihcles. Match key pattern to the locking lugnuts on your vehicle. Line up socket with nut tightly; turn counter-clockwise to loose nuts. | Not for use with impact wrench. US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI.