With 3 distinct functions, this is a Shoulder Plane, Bullnose Plane, and Chisel Plane in one. To change use, either swap out a nose piece or take off the nose section completely to turn it into a chisel plane. It is manufactured from fine grey iron, precision machined, ground, and finally polished. The sole is truly flat and the sides are perfectly square to the sole. It is comfortable in use even for prolonged periods due to its ergonomic design. You can vary the width of the mouth to switch from coarse to fine work by adding or removing a shim.