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Rifles, Reloading, Optics, Equipment
Gunsmithing
Tubb extractor
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<blockquote data-quote="Fiftydriver" data-source="post: 161561" data-attributes="member: 10"><p>Tom,</p><p> </p><p>One trick I use to drill the bolt to remove the old extractor rivit is to clamp the bolt in the fixture for milling the sako extractor and eyeball the bolt so that the original extracto rivit is top dead center. They use a small solid carbid drill bit. I use a #37.</p><p> </p><p>center the drill bit over the rivit and slowly drill. I only go roughly 15 to 20 thou deep. I do not want to drill all the way through the lip of the bolt nose, just want to take off the head of the rivit. The actual center of the rivit is much smaller in diameter.</p><p> </p><p>THen I take a small diameter punch and push the extactor rivit down until the extractor bends or snaps and they it comes right out. Leaving only a very small hole in the bolt nose sidewall.</p><p> </p><p>The rivit material is much softer then the bolt nose so in most cases, if your drill is slightly off center, it will correct itself and since your only drilling 20 thou deep at the most in most cases, the drill bit will not break if it has to run a bit to stay on the rivit.</p><p> </p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 161561, member: 10"] Tom, One trick I use to drill the bolt to remove the old extractor rivit is to clamp the bolt in the fixture for milling the sako extractor and eyeball the bolt so that the original extracto rivit is top dead center. They use a small solid carbid drill bit. I use a #37. center the drill bit over the rivit and slowly drill. I only go roughly 15 to 20 thou deep. I do not want to drill all the way through the lip of the bolt nose, just want to take off the head of the rivit. The actual center of the rivit is much smaller in diameter. THen I take a small diameter punch and push the extactor rivit down until the extractor bends or snaps and they it comes right out. Leaving only a very small hole in the bolt nose sidewall. The rivit material is much softer then the bolt nose so in most cases, if your drill is slightly off center, it will correct itself and since your only drilling 20 thou deep at the most in most cases, the drill bit will not break if it has to run a bit to stay on the rivit. Kirby Allen(50) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Tubb extractor
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