Fig 128 Hammering Out The Bevel At The Wide End Of The Pick

8. Watch the change of color. The chilled point is of a straw color and so hard that it might break off if it struck a stone. As the heat draws down into the point again you will note a purple shade next to the straw color. This also is too hard for general work. Next to the purple comes a blue, at which color the metal is about the right degree of hardness for such work as is done with a pick. When the blue reaches the point, plunge the tool in water and move it about until it is cold.

9. If the point breaks off when the pick is used, it shows that it was cooled too soon; on the other hand, if the point bends, it was not cooled soon enough.

10. To forge or shape the other end of the pick, it is heated and placed on the anvil with the beveled side up* and the hammering is done on this side and one edge. The wcjrker should be careful to hold the point end at the proper height with the left hand so as to give the pick the proper "hook/' The bevel can be hammered to its approximate shape by placing the tool out to the far edge of the anvil, as shown in Figure 128. The hammering is done on the side and edge alternately, so as to prevent the metal from being hammered out fan shape. (See Fig. 129.) If the edge is irregular in shape, a few blows against the end will tend to make it straight.

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