The Sheartak Spiral Cutterhead for the Felder BF 6-41 16" Combination Machine features carbide inserts set at an angle to the feed, creating a true shear-cut. This design guarantees an exceptional surface finish, even on knotty or difficult wood. Compared to traditional straight-edge cutterheads, the Sheartak Spiral Cutterhead provides a smoother, more precise finish. Its round-edged, angled inserts ensure a clean, glass-like cut, even on highly figured or soft woods. Each insert has four cutting edges, which can be rotated up to three times to expose a fresh sharp edge. This eliminates the need for sharpening or resetting when an insert dulls or becomes damaged. Carbide inserts stay sharp 50 times longer than HSS blades, and dust extraction is more efficient due to the shorter, thinner chips produced by the Sheartak spiral cutterheads. All of our cutterheads come with a one-year warranty from the date of purchase, covering parts and guaranteeing they are free from manufacturer defects (excluding consumables). Kit Includes: (1) T-handle wrench (5) Inserts (5) Torx screws We offer our cutterheads in two versions: 80 carbide inserts with 5 spirals 102 carbide inserts with 6 spirals For professional woodworking or industrial shops, we recommend the 102 carbide inserts with 6 spirals. Feel free to contact us if you have any questions or concerns.