THE FARM SHOP 49 



inch pipe is about one inch outside. Two-inch pipe will 

 carry four times as much water as one-inch pipe, under 

 the rule ' l doubling the diameter increases the capacity 

 four times/ 7 



The three-wheel pipe cutter works quickly and is 

 satisfactory for most jobs. Sometimes two of the knife 



Figure 68. A smaller sized wrench with wooden handle. 



wheels are removed and rollers substituted to prevent 

 raising a burr on the end of the pipe. 



Threading dies are made in standard sizes. A good 

 farm set consists of stock and dies to thread all the 

 different sizes of pipe from one-quarter inch to one 

 inch, inclusive. Not many pipes larger than inch are 

 threaded on the farm. They are cut to the proper 

 lengths in the farm shop and the threads are cut in 

 town. 



