Mark the working edge with two distinct pencil marks, B, Fig.

103.
3.End.First mark the width on the working face with the marking-gage, C, 1-2, Fig.103.Chisel off the corner, _a_, of the piece outside this gaged line.

True and smooth this end with the plane, making it square with both working face and working edge, D, 2, 3, 4, Fig.

103.
4.Length.Measure the length from the finished end, D, 2-3-4, score across the working face, D, 5-6, and working edge, D, 6-7, using a sharp knife point and the try-square.

Saw just outside this line, D, 5-6-7, with the back-saw, cut off the narrow corner, D, _b_, beyond the gaged line and plane true, E, Fig.