The up cut spiral will provide a smooth finish to the bottom edge, while directing the chips upward and out. 3 Flute Chip breakers are designed to break the cut chips into smaller pieces, reducing vibration and power consumption. This allows for even faster speeds on all materials for a finer finish, although visual lines maybe seen in some situations. The chip breaker slots are staggered on each flute to leave a smooth finish although the work piece must be securely clamped. Recommended for plywood's, hardwoods and dense materials that require higher feed rates.