10 Oct.. 11)17. J 



Hints on Dressing a Saw. 



633 



Plate 2. This is placed on edge against the blade of the saw, the 

 top being level with the point of the tooth. The set is then applied 

 with a gentle pressure to bend the tooth until it will just touch the 

 gauge on top, ererv second tooth on one side being treated in the same 

 manner along the full length, and, after reversing the saw in the clamp, 

 the other teeth may be dealt with. 



Filing or Sharpening a Saw. — In sharpening a hand saw, a three- 

 cornered file should be used, the grading varying with the class of 

 work and kind of saw to be treated. A tenon saw requires a iine or 



SAW SET 



TOOTH CAUCE 



Plate No. 2. 



small file, a coarser saw a larger file, and a rip saw a coarser file still. 

 The file is inserted between each alternate tooth with a gentle, firm, 

 even, forward pressure, the hand holding the file slightly downward, the 

 point of the file being inclined towards tlio point of the saw\ This 

 position slightly cuts down into the blade, and keeps the teeth of 

 uniform length. If the filing each time is done on the tooth and the 

 blade is not cut into,, the tooth is filed short, and the saw is very soon 

 ruined. The file should be held slightly at an angle to the blade, i.e.. the 

 point inclined away from the handle of the saw. In filing a crosscut 



