420 THE YOUNG FARMER'S MANUAL. 



case a tooth should get set a little too much, the side of the point 

 may be dressed off a little with a file, being careful to have the 

 side edge of the face of the teeth more prominent than they are 

 back of the face edges. If there should be any play of the man 

 drel endways, it must be held against one shoulder of the bearing 

 while it is being set. This mode of setting will make a circular 

 saw of uneven thickness, or that has little kinks in it, cut much 

 truer, and work easier, than if the set of the teeth were gauged 

 by the side of the saw plate. The teeth of circular saws for cut 

 ting across the grain of wood, the points of which are spread by 

 bending instead of swedging, may be gauged in setting by the end 

 of a stick instead of the side of the plate. 



637. A saw set that is used for lending teeth should have not 

 only a set-screw to gauge the amount of set, but should have a 

 brass or copper plate for the points of the teeth to rest against 

 when the saw is being set, which plate may be adjusted to allow 

 the teeth to enter the set just so far and no farther. A saw set 

 that has no adjustable plate, but receives some teeth half their 

 length, and only the points of others, is an improper instrument 

 to set teeth with. If a saw set, for instance, takes hold of one 

 tooth near its point, and bends it as much as the gauge-screw 

 will admit of, and if the set is then put on the next tooth farther 

 than it was on the first tooth, the teeth on which the set was 

 placed the farthest, will receive the most set, even if the set- 

 screw is made to touch the plate alike in setting each individual 

 tooth. 



638. There is great danger, in setting the teeth of saws which 

 have a high temper, or which are very hard, of breaking them, 

 especially in cold weather. Whenever a hard saw or a thick one 

 is to be set, it should be well warmed before any teeth arc set. 

 The teeth of some good saws when they are very cold will snap 

 almost like glass when we attempt to set them. The best way 

 to warm the teeth is, to pour hot water on them before setting? 

 unless the saw can be taken into a warm room. This applies not 

 only to circular saws, but to all kinds of long saws ; and the tyro 

 will ever regret that he did not warm his saw previous to setting 



