Description Scanda 8mm Triple Flute Up Spiral Deep Cutting Bit with Chipbreaker Flute. For 8mm cuts up to 55mm deep in SOLID WOOD MDF The Chipbreaker Flute leaves a semi rough finish with no chipping on the surface and the reduced diameter flute prevents rubbing and minimizes cutting resistance in deep cuts. This Router Bit is also suitable as a Lock Mortice bit.