9pcs Allen Wrenches Sizes: 1.5mm - 10mm Hex Keys Hard Chrome Plated #HANDTOOLS #POWERTOOLS #SPECIAL TOOLS #HANDTOOLS #POWERTOOLS #SPECIAL TOOLS #CARTOOLS #HANDTOOLS #POWERTOOLS #SPECIAL TOOLS An Allen wrench, also known as a hex key or Allen key, is a simple yet handy tool used to drive bolts and screws with hexagonal sockets. They typically come in a set of various sizes, each with a hexagonal shape at one end that fits into the corresponding socket of the screw or bolt. They're commonly used in furniture assembly, bike repairs, and other applications where hexagonal socket screws are prevalent. They're named after the Allen Manufacturing Company, which first introduced them in the early 20th century. TOOLS for bicycle,