PROJECTS IN BLACKSMITHING 



205 



Problem No. 2 : Upsetting and Punching. 

 Projects Suggested for this Group: 



a) Open-end wrench (Fig. 186). 



b) Punched screw clevis (Fig. 187). 



c) Machine bolt (Fig. 188). 



d) Log hook (Fig. 189). 



178. Tools Needed for Upsetting and Punching. The 

 same tools as those named for the group of projects in Prob- 



FIG. 186. Open-end wrench. 



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FIG. 187. Punched screw clevis. 



lem 1 will be required in this group, and in addition, the up- 

 setting tool and punch. 



179. Upsetting and Punching. It is frequently neces- 

 sary to enlarge some portion of a piece of iron. This is done 



