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Rifles, Reloading, Optics, Equipment
Reloading
21st Century Carbide Mandrel Question
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<blockquote data-quote="QuietTexan" data-source="post: 2516338" data-attributes="member: 116181"><p>Try re-reading, I'll clarify :</p><p></p><p></p><p>This is the black nitride (NOT carbide) expander you put in your post:</p><p>[URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/black-nitride-expander-mandrel[/URL]</p><p></p><p>This is the original stainless steel expander mandrel:</p><p>[URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/ss-expander-mandrel[/URL]</p><p></p><p>The original stainless steel expander mandrel is described thusly:</p><p></p><p></p><p>The black nitride mandrel is an updated version of the SS expander mandrel that was specified for use as part of their turning kit. The -0.0008" under caliber spec was chosen to fit on the turning arbor.</p><p></p><p>They also offer the much more common TiN Expander mandrel:</p><p>[URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/titanium-nitride-expander-mandrel[/URL]</p><p></p><p>The mandrel is NOT carbide, it's steel that has (most likely) undergone a ferritic nitrocarburizing case hardening process.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2516338, member: 116181"] Try re-reading, I'll clarify : This is the black nitride (NOT carbide) expander you put in your post: [URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/black-nitride-expander-mandrel[/URL] This is the original stainless steel expander mandrel: [URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/ss-expander-mandrel[/URL] The original stainless steel expander mandrel is described thusly: The black nitride mandrel is an updated version of the SS expander mandrel that was specified for use as part of their turning kit. The -0.0008" under caliber spec was chosen to fit on the turning arbor. They also offer the much more common TiN Expander mandrel: [URL unfurl="true"]https://21stcenturyinnovation.com/buy-online/ols/products/titanium-nitride-expander-mandrel[/URL] The mandrel is NOT carbide, it's steel that has (most likely) undergone a ferritic nitrocarburizing case hardening process. [/QUOTE]
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21st Century Carbide Mandrel Question
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