The Capri Tools Super-Thin Open End Wrenches have ultra low profiles that let you reach fasteners in tight clearance. As thin as 2.2 to 4.6 mm, these open end wrenches are truly versatile and come in handy in a wide variety of applications. The wrench head is tipped at a 15-degree angle. Useful especially in narrow spots, after each 15-degree turn, flip the wrench over to quickly engage the fastener again. These super-thin wrenches are constructed of our premium Chrome Vanadium steel, forged with a complete 10-step state of the art heat treatment process. They are made for serious professional and made to last. Each is plated with our flawless SmartKrome plating, achieved through thorough polishing and careful application, to ensure durability and corrosion resistance. Set comes with 7 open end wrenches with 14 metric sizes: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19 mm. A storage rack is included.