Multiple Size Compatibility: Works with M-10 grinder output shafts, converts to 6.35MM standard shanks, and fits 3 / 8 and 1 / 2 inch drill chucks, ensuring a tight connection with high load capacity to avoid loosening during heavy use Safe Locking: Built in locking design keeps the adapter stable and secure during high intensity work, enhancing user safe by avoiding accidental detachment and improving overall operational security Simple Setup and Versatility: Screws directly onto the grinder spindle for installation, enabling easy switching between grinding, drilling, and screwdriving tasks for metalworking, woodworking, and repair applications Fast change Button Design: Features a push button fast change mechanism for fast tool swaps without extra tools, greatly boosting work efficiency and convenience when switching between tasks Rust Carbon Steel Build: Made from premium carbon steel with anti rust coating, providing strong resistance to rust and wear for durability in toughly conditions and extended service life, Manufacturer: Kfwfuaee