COMPATIBILITY: Designed specifically for Festool DF500 Domino joining machine, ensuring perfect fit and optimal performance in mortise creation COMPLETE SET: Includes 5 precision-engineered solid carbide bits: 0.16', 0.2', 15/64', 5/16', and 25/64' diameters for versatile jointing options DURABILITY: Constructed from solid carbide with black PTFE coating for superior wear resistance and extended cutting life in demanding applications CUTTING DESIGN: Features 2-flute spiral design with sharp cutting edges for clean, accurate mortise cuts essential for professional woodworking VERSATILE USE: Perfect for creating precise mortises across various wood types and thicknesses, delivering consistently strong joints