7 Pc. SAE/Metric Protective Impact Socket Set Manufactured using quality chrome molybdenum alloy steel. Sockets feature outer protective sleeves and inner plastic inserts to prevent damage to custom wheels and decorative lug nuts. 1/2 drive. Hollow design for use on longer wheel studs. Color-coded for easy identification. Set Includes:. ATD-4358 - 17mm (Blue). ATD-4359 - 19mm (Yellow). ATD-4360 - 21mm (Red). ATD-4361 - 13/16 (Purple). ATD-4362 - 7/8 (Green). ATD-4363 - 1 (Bronze). ATD-4364 - 1-1/16 (Black). Molded storage case 4357