Our corrugated knives feature parallel ridges machined into the non-cutting edge, letting the knife lock securely into a matching moulder or shaper cutterhead without slipping under cutting load. This corrugated-back design supports custom profile work — crown mouldings, baseboards, panel raisers, and similar shapes — where a standard knife profile won't do. Available in M2 high-speed steel and carbide-inlay construction across multiple thicknesses, widths, and lengths.