Gray, cast-iron base with precision-ground sides and bottom. Durable epoxy coating provides long-lasting protection. Hardened, tempered steel gives precision-ground cutter edge durability. Fully machined and polished double-iron cutter and lever. Frog seat is machined for precise mouth adjustment. Cutter adjusts for depth and alignment, offering precise control. Solid-brass, cutter-adjustment knob. Quick-release cam-lock makes iron removal easy. Kidney-shaped hole in lever cap helps secure cutter in place. Contoured, polished high-impact polymer handles and knobs. Replacement Iron is #12-313