Manufactured from chrome molybdenum steel, these TX keys are best used for loosening and tightening countersunk hexagon fastenings. Supplied in a plastic storage clip that is clearly labelled to help you identify the correct size key. Comes with 9 L-wrench keys of varying sizes. Features and Benefits • Black oxide finish protects the product from corrosion • Manufactured from robust chrome molybdenum steel for overall product longevity • 9 piece set contains the most commonly used sizes to help you to be prepared for any applications • Supplied in a plastic storage clip to keep your tools together Typical Application • Furniture Assembly • Bicycle Repair and Maintenance