CUTTING TOOLS 



15 



be used without exerting much pressure, in accordance 

 with the general rule that we do our best work with 

 tools when we work easily and deliberately. 



FIG. 16. The Backsaw 



Many varieties of saws are designed for special pur- 

 poses, including those which cut stone and metal. 



6. Backsaw. 

 The backsaw is a 

 crosscut saw with 

 small teeth, and 

 has a heavy steel 

 backpiece, Fig. 

 17, to prevent 

 bending. In this 

 respect it differs 

 from the ordinary 



crosscut vario- FIG. 17. Method of using the Backsaw and 



Bench Hook 



ties, which bend 



readily. The purpose of the backsaw is to make fine, 



straight cuts in delicate, accurate work. The steel 



