The Hillen&Mohr impact sockets are designed for safe removal of aluminum wheels and are compatible with 1/2" pneumatic wrenches. Made of high-quality chromium-molybdenum steel, these sockets are equipped with a soft plastic protective sleeve that prevents damage to the wheel's paint coating. The sockets are 85 mm long and feature a chrome finish in three distinct colors for easy identification of sizes (17 mm, 19 mm, 21 mm).