SAWS AND SAWING 35 



The back-saw is a combination of the rip and crosscut in 

 tooth formation, and is used for cutting either with or across 

 the grain, particularly where fine sawing is required, as in the 

 making of joints. 



Saw kerf 

 ^POiNT HCtL - I 



/ ifiv s *- v 



FIG. 15. Shape of rip- FIG. 16. Position of rip- 



saw teeth. saw in action. 



10. Crosscut-saws. The teeth of a crosscut-saw are 

 filed on both the front and back edges at an angle with the 

 surface of the saw-blade (Fig. 17). This saw cuts across the 

 grain, and does its work as it makes its forward stroke. The 



FIG. 17. Shape of crosscut- 

 saw teeth. 



saw is "set" by pushing all teeth outward from the sides 

 which are filed. This results, as in the case of the rip-saw, in 

 forming two series of teeth, those of one series being pushed 

 toward one side of the blade, and those of the other in the 

 opposite direction (Fig. 17). 

 Working Instructions jor Flower Trellis. 



Stock: I piece, I" x 5" x32". 



Soft, straight-grained wood. (Drawing, Fig. 9.) 



