Chisels are long metal tools terminating in blades. They are made in a variety of widths and typologies.
Bench Chisels
An all-purpose tool, the bench chisel comes in many widths and is used primarily for slicing and chopping. Its beveled sides allow the chisel to access tight corners when chopping. In the Roubo plate, note the side view (figure 9). The bench chisel is flat on one side and beveled into a blade on the other.
A wide bench chisel slicing away a small piece of wood.
Gouges
Used in wood carving, gouges are specialty chisels with a variety of blade profiles. Each profile achieves an effect in the wood’s surface though careful slicing.
Mortising Chisels
Thicker and heftier than a bench chisel, the mortising chisel is used for chopping mortises and levering-out waste wood. Its square sides aid in keeping the walls of the mortise flat and square.
A comparison of a bench chisel (left) and a mortising chisel (right). The bench chisel’s sides are beveled at an angle while the mortising chisel’s are square. The mortising chisel is also thicker than the bench chisel.