Features: The Chuck is portable and lightweight, which is easy to carry and use to your operation. Keyless design allows one to easily and quickly swap bits and wires, easy to load and unload. The three-jaw chuck holds firmly and is not easy to fall off. M10 screw thread is suitable for special angle grinder, easy to convert and connect to drills or other tools. Ideal for repairers, DIY. It is also an ideal tool to use in garages, warehouses, offices, houses and other places.