Festool 491072 Cup Hinge Bit HW S8 D20 is a precision hinge location bit designed for efficient and accurate woodworking. Featuring a durable HW D20 cutting diameter and an 8mm (.31 inch) shank, this bit ensures a fit for cup hinges, making it an essential tool for cabinetry and furniture projects. Crafted by Festool, a brand known for quality and reliability, this hinge bit delivers consistent performance for both professional craftsmen and DIY enthusiasts. Model Number: 491072