26 



FARM MECHANICS 



very handy. These two bars should be made of the best 

 octagon steel, seven-eighths of an inch in diameter. 



Figure 28. Extension Boring Bits. The cutting lips may be set 

 to bore holes from y 2 " to 3" in diameter. They are used mostly in 

 softwood. 



Figure 29. Ship Auger. This shape auger is made with or with- 

 out a screw point. It will bore straighter in cross-grained wood 

 without a point. 



Figure 30. Long Ship Auger. 



_D 



Figure 31. Bridge Auger. The long handle permits the workman 

 to stand erect white boring. The home made handle is welded onto 

 the shank of a ship auger. 



A wooden carpenter's level, Figure 23, two feet 

 long, with a plumb glass near one end, is the most sat- 

 isfactory farm level, an instrument that is needed a 

 great many times during the year. 



