210 



BLACKSMITHING 



it until it is 5/8" in diameter (B, Fig. 197). Cut the end out 

 with a hot chisel or handled hardie to 60 degrees, keeping 

 same centrally located, as shown at C, Fig. 197. Reheat and 

 forge to shape and dimensions, shown in Fig. 186. This 

 should be done by holding the wrench edgewise 

 on the face of the anvil with the handle held 

 downward at an angle and striking the wrench 

 end an angle blow on the end of each prong 

 of this end, finally flattening the inside of jaws 

 and their surface on the heel end of the anvil. 

 Smooth up with flatter. 

 The wrench should be hardened to make it serviceable. 

 Heat it to lemon color and plunge it in water for a few mo- 

 ments. This cools the outer surface. When the metal is 



FIG. 198. Har- 

 die for anvil. 



FIG. 199. Upsetting and shaping bolt. 



withdrawn from the water, the heat of the center will draw 

 out toward the surface. While still quite warm, put in water 

 to completely cool. 



182. Bolt Head. The construction of the square bolt 

 head involves upsetting (Fig. 199). Care must be taken not. 



