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Gold Prospecting
Do It Yourself (DIY) Projects
DIY Plug Digga Spade plans with stick on template and instructions
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<blockquote data-quote="Smoky bandit" data-source="post: 299808" data-attributes="member: 7289"><p>Hi mate a shovel would allready have been hardend...if you try an harden it again you will only make it brittle......if u are wanting to temper steel it has to be done after you harden...Heat until glowing red then cool in oil...or cool water...i prefer oil as it blackens the metal....then to temper ...heat again slowly..but dont let it go red this time...dont dip in oil this time either.....let it cool slowly...then it has been temperd..Hope this helps..... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Smoky bandit, post: 299808, member: 7289"] Hi mate a shovel would allready have been hardend...if you try an harden it again you will only make it brittle......if u are wanting to temper steel it has to be done after you harden...Heat until glowing red then cool in oil...or cool water...i prefer oil as it blackens the metal....then to temper ...heat again slowly..but dont let it go red this time...dont dip in oil this time either.....let it cool slowly...then it has been temperd..Hope this helps..... :D [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
DIY Plug Digga Spade plans with stick on template and instructions
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