These types of helical cutterheads are made to meet the applications where thick and cuttings are required. The carbide inserts are locked in place with wedges. Cutting up to 8 to 10mm one pass can be done if the motors are powerful. The carbide inserts are two-edge or four-edge carbide blades. The blade life is 8 to 10 times longer than the straight blades. We manufacture and design to custom order.