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Rifles, Reloading, Optics, Equipment
Gunsmithing
Back Spindle Spider
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<blockquote data-quote="SidecarFlip" data-source="post: 832030" data-attributes="member: 39764"><p>You need to invest in one or a couple Valenite or OSG indexable insert boring bars. Much better, more rigid and you can the insert after indexing it numerous times plus you can spec them with through the bar cooling that puts coolant and lubricant at the cutting point.</p><p> </p><p>Those throw away brazed carbide bars are fine for small jobs, one time and the carbide grade is questionable because they are made...over there.</p><p> </p><p>From the looks of the chatter, bet it was singing.....<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>But then. we don't know what kind of toolpost you have. The indexable tooling likes an extremely rigid and repeatable toolpost like an Aloris or Dorian wedge lock.</p><p> </p><p>Always things to consider. You'll need an indexable bar to cut the internal threads anyway unless you are an expert grinder at grinding a throwaway bar to the correct</p><p>thread form.</p></blockquote><p></p>
[QUOTE="SidecarFlip, post: 832030, member: 39764"] You need to invest in one or a couple Valenite or OSG indexable insert boring bars. Much better, more rigid and you can the insert after indexing it numerous times plus you can spec them with through the bar cooling that puts coolant and lubricant at the cutting point. Those throw away brazed carbide bars are fine for small jobs, one time and the carbide grade is questionable because they are made...over there. From the looks of the chatter, bet it was singing.....:) But then. we don't know what kind of toolpost you have. The indexable tooling likes an extremely rigid and repeatable toolpost like an Aloris or Dorian wedge lock. Always things to consider. You'll need an indexable bar to cut the internal threads anyway unless you are an expert grinder at grinding a throwaway bar to the correct thread form. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Back Spindle Spider
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