Fig. 40.
Fig. 41.
Third, the saws are filed, a three-cornered file being used for this purpose. The kind of saw determines the angle or angles at which the file is held with reference to the saw blade. [Fig. 41] illustrates the position when filing the crosscut and [Fig. 42] the rip-saw.
Fig. 42.
Fig. 43.
Fourth, the teeth are side jointed by laying the saw flat upon the bench and rubbing an oil-stone over each side lightly, once. [Fig. 43]. This is to even the sides of the teeth that the kerf may be smoothly cut.