Freud 40mm Left Hand Cylinder Hinge Boring Bit 10mm Shank CB40057L Holdowns and Tension Ties Overload Protection w Manual Reset Overload Protection w Manual Reset Compatible with both solid sawn and engineered wood products provides versatility across a wide range of wood frame construction projects without requiring a different hanger for different lumber types Wood case included protects the carbide cutting edges during storage and transport Carbide tipped construction paired with a precision ground cutting geometry means this hinge boring bit holds up in demanding production environments where repeated boring cycles would quickly dull lesser tools