Features and Benefits:�Wrench heads are 2.7mm to 3.5mm (0.11-0.14") thick, making them 50-70% thinner than standard wrenches Nickel chrome plated to resist corrosion and fully polished for easy cleanup Premium quality drop forged and hardened chrome alloy steel Full range of sizes designed for use in narrow spaces, but still long enough for applying sufficient torque Vacuum tray keeps everything organized Super-thin, low profile wrenches let you reach fasteners in areas with low clearance. Wrench heads are 2.7mm to 3.5mm (0.11-0.14") thick, making them 50-70% thinner than standard wrenches. Nickel chrome plated to resist corrosion and fully polished for easy cleanup. Premium quality drop forged and hardened chrome alloy steel. Full range of sizes designed for use in narrow spaces, but still long enough for applying sufficient torque. Vacuum tray keeps everything organized. SAE sizes: 3/8" x 7/16", 1/2" x 9/16", 5/8" x 11/16", 3/4" x 13/16", 7/8" x 15/16", 1" x 1-1/16", 1-1/8" x 1-1/4"