Among the special planes used by the pattern maker, the rabbet plane, llustrated in Fig. 29, is the most important. The face of this plane is always flat and at right angles to the sides. It is used in working out square angles and corners, or laps as they are called in carpentry, and also for working the lap joints, as shown in Fig. 30.

The skew-iron rabbet plane, in which the cutting edge of the plane iron is set diagonally across the face of the plane, works much more smoothly and easily than one in which the iron is set at right angles to the side of the plane. The improved rabbet plane shown in Fig. 31 is fitted with depth gage, and also with a spur cutter, both of which are often of great convenience to the workman.

Fig. 29. Rabbet Plans.

Fig. 30. Rabbet Plane.

Fig. 31. Improved Rabbet Plane.

Rabbet planes are made in sizes ranging from 1/2 inch to 1 1/2 inches in width. The 1-inch and 1 1/4-inch are convenient sizes for general work.