High quality steel construction: Our window adjustment keys are manufactured from robust, high-grade steel with outstanding hardness and toughness. This ensures exceptional resistance to wear, bending and deformation, so the tools remain reliable even with frequent use and deliver consistently precise adjustment results over the long term. Specially designed for Aubi window corner bearings, this adjustment key fits the corresponding fittings exactly. The precisely dimensioned tip allows smooth, accurate adjustment of the corner bearings so that sash and frame interact optimally, improving sealing, closing comfort and long-term functional reliability. chrome-plated : The of each corner bearing key is finely chrome-plated, creating an attractive silver finish with excellent resistance. Even in damp rooms or near condensation-prone , the tools remain rust-, easy to clean and visually appealing, significantly extending their overall service life. User-friendly window adjustment tool: Thanks to its ergonomic design and clearly defined contact surfaces, this window adjustment key is intuitive to use, even for non-professionals. It is immediately ready for use and allows you to quickly correct sagging sashes, saving time and avoiding costly service appointments.