2nd January 1942, Page 20
2nd January 1942
Page 20

Page 20, 2nd January 1942
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Tool Heat-treatment In The Garage
How to Obtain the Best Results in Hardening and Forging, and to Avoid Spoiling Good Tools and Wasting the Initial Work of Making Them By Basil Barham fiANUFACTURERS of tool......