A Spiral-flute bit is what every Man who owns and/or operate on a CNC router should own. Spiral-flute bits blend a shave activity in drilling with an auguring force. The trimming process outputs an especially clear consistent cut while the auguring action clears everything from the cut. The ‘Down-Cut’ trim from the exterior down leaving a continuous end at the surface. A unique level heightened consent calculation and blade-sharp trimming edges with polished crease provide a fantastic finish and a long tool life, especially in rough components. Great for manufacture settings and exceptional for creating detail cuts in plywood and laminate. Primarily for CNC machines and other automated routers.