General description This Teng Tools 9-piece Ball Point Hexagon Key Set is designed for professional use and is ideal for DIY and home improvement projects. The set includes a versatile range of sizes, making it suitable for various tasks. Each key features a ball end that allows for working at angles up to 30°, facilitating access to fasteners in tight or awkward spaces. The keys are made of durable chrome-vanadium steel and are supplied in a foldable plastic holder for easy storage and organization. Technical specifications Material: Chrome-vanadium steel Finish: Black Number of pieces: 9 Sizes: 5/64", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" Features: Ball end allowing up to 30° working angle Compatibility and accessories Compatible with standard hex fasteners Supplied with a foldable plastic holder for organization Installation Insert the hex key into the fastener's socket Apply torque as needed, using the ball end for angled access Usage Use the appropriate size hex key