YTgilo 4PCS 6mm Split Shaft Bushing Aluminum Alloy One Piece Limit Shaft Collar with M4 Set Screws for Machine Tool Drive Shaft Gearbox Limit and Fixation

["High-quality aluminum alloy: Made from high-strength aluminum alloy, it is lightweight, sturdy, durable, and resistant to deformation, ensuring a long service life.","Standard dimensions: 6mm bore, 20mm outer diameter, 8mm thickness. Precise dimensions ensure compatibility with 6mm shafts.","Sandblasted and Anodized for Rust Prevention: The surface undergoes sandblasting and anodizing treatment, providing rust and corrosion resistance suitable for various operating environments.","Easy Installation and Reusable: Easily secured with a set screw, it is simple to install and remove, and can be reused repeatedly.","Wide Range of Applications: Suitable for limiting and securing shafts in machine tools, drive shafts, gearboxes, automation equipment, and more."]