Once you try a Kunz bench plane, you won't go back. There's something very different but easy about them. You can adjust the mouth opening with a single screw. Combining the features of traditional bench planes, with a little innovation. The casting is stress-relieved annealed grey-cast iron, the iron is tool steel hardened to 60-62 HRC and seated to prevent chattering. The sole is precision ground, and the sides are square to the sole. Made in Germany.