Lug Nut Wheel Sockets feature the Most Durable, Non-Marring Sleeve to protect rims during tire changes. ARMOR-GUARD Sleeve is made with premium, durable plastic to withstand regular wheel installation and removals. Lug Nut Sockets feature a non-marring plastic insert to protect lug nuts during use. Sleeves are color coded Gray for Metric sizes and Red for SAE sizes to ensure easier socket selection. Sockets are Thin Walled for easy access in tight wheel assemblies. Socket sizes are stamped & ink filled for the boldest, longest lasting markings. Non-slip hex geometry to prevent socket and fastener rounding. Meets ASME Industry standards for thin-walled sockets. Optimized for use with 1/2 drive impact wrenches, drivers, ratchets, and adapters. Interchangeable clips for rail customization.