The Tolsen 20054 is a 9-piece ball point extra-long arm hex key set designed to provide better reach and leverage when working in tight or deep spaces. Each tool is crafted from chrome vanadium steel and has undergone heat treatment and chrome plating to ensure durability against wear and corrosion. This set includes a comprehensive range of sizes from 1.5mm up to 10mm, catering to a wide variety of mechanical tasks. A particularly useful feature is the ball point tip, which allows you to enter fasteners at an angle of up to 30 degrees, making it much easier to access bolts that aren't directly aligned with your hand. These tools are ideal for anyone from home DIY enthusiasts to professional technicians who need a reliable set of keys that can handle awkward angles without slipping.