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Rifles, Reloading, Optics, Equipment
Gunsmithing
How do you guys cut your threads?
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<blockquote data-quote="J E Custom" data-source="post: 188220" data-attributes="member: 2736"><p>James</p><p></p><p>I cut threads about the same way as you and Specweldtom</p><p>except for the 29.5 degree tool position.</p><p></p><p>I use carbide tools so I use 30 degrees on the compound and grind </p><p>a chip breaker on the threading tool so I can see the cut better.</p><p></p><p>Also I like cutting the tenon about a 1/4" long so that when the tool</p><p>contacts the tenon if there is any chater or slack it is taken up </p><p>before it reaches the finished threads. and this extra tenon is removed </p><p>when threading is completed.</p><p></p><p>Part of the relief is under the recoil lug giving me the most threads</p><p>possible.And once the action will start on the tenon(It still will not</p><p>make up) I chase the threads without any feed (Cross feed or </p><p>compound) normaly all I get is about .001" and if this is not enough</p><p>I will feed the crossfeed (not the compound) in .001" and chase 2 or</p><p>3 more times.</p><p></p><p>And I use 44rpm to 70rpm ( my lathe will not go to 40rpm).</p><p></p><p>Just the way I do it</p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 188220, member: 2736"] James I cut threads about the same way as you and Specweldtom except for the 29.5 degree tool position. I use carbide tools so I use 30 degrees on the compound and grind a chip breaker on the threading tool so I can see the cut better. Also I like cutting the tenon about a 1/4" long so that when the tool contacts the tenon if there is any chater or slack it is taken up before it reaches the finished threads. and this extra tenon is removed when threading is completed. Part of the relief is under the recoil lug giving me the most threads possible.And once the action will start on the tenon(It still will not make up) I chase the threads without any feed (Cross feed or compound) normaly all I get is about .001" and if this is not enough I will feed the crossfeed (not the compound) in .001" and chase 2 or 3 more times. And I use 44rpm to 70rpm ( my lathe will not go to 40rpm). Just the way I do it J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
How do you guys cut your threads?
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