initial rivet hole sizes - Zenith Aircraft Builders and Flyers2024-03-29T13:31:27Zhttps://zenith.aero/forum/topics/initial-rivet-hole-sizes?feed=yes&xn_auth=noalways pilot holes first then…tag:zenith.aero,2020-11-18:2606393:Comment:7746972020-11-18T21:26:20.821Zdewayne clardyhttps://zenith.aero/profile/dewayneclardy
always pilot holes first then step up to final size it makes a cleaner , and lessen the chances of drill bit walking on you. if you wanted to be real anal/ professional you can buy bits with pilots on them, ie double margin or core drills. that way the pilot on the bit will follow the pilot in the skin. lessens chances of holes moving on you.
always pilot holes first then step up to final size it makes a cleaner , and lessen the chances of drill bit walking on you. if you wanted to be real anal/ professional you can buy bits with pilots on them, ie double margin or core drills. that way the pilot on the bit will follow the pilot in the skin. lessens chances of holes moving on you. Thanks for the correction Johntag:zenith.aero,2018-01-09:2606393:Comment:6064672018-01-09T16:03:52.643ZLoren Warnerhttps://zenith.aero/profile/LorenWarner
<p>Thanks for the correction John</p>
<p>Thanks for the correction John</p> Drill out first to #40, then…tag:zenith.aero,2018-01-09:2606393:Comment:6062982018-01-09T04:00:18.784ZDamon Brantleyhttps://zenith.aero/profile/DamonBrantley
<p>Drill out first to #40, then cleco. Then delay enlarging to #30 for as along as is practical. My personal experience is that you want to delay doing anything that can not be undone for as long as possible. At the very least you save your self the time of drilling #30 holes if you discover that the #40's are not in the correct location.</p>
<p>Drill out first to #40, then cleco. Then delay enlarging to #30 for as along as is practical. My personal experience is that you want to delay doing anything that can not be undone for as long as possible. At the very least you save your self the time of drilling #30 holes if you discover that the #40's are not in the correct location.</p> Use #40 (A4) as pilot hole, t…tag:zenith.aero,2018-01-09:2606393:Comment:6064492018-01-09T03:48:53.344ZJohn Austinhttps://zenith.aero/profile/JohnLAustin
<p><em><span>Use #40 (A4) as pilot hole, then open to #30 (A5)</span></em></p>
<p></p>
<p>I agree to pilot with #40 and then expand to #30, <em>but</em> a #40 is for <span style="text-decoration: underline;">A3</span> (3/32") rivets and silver clecos and</p>
<p>a #30 is for <span style="text-decoration: underline;">A4</span> (1/8") rivets and copper clecos. (A5's are 5/32"-black clecos)</p>
<p></p>
<p>John</p>
<p>N750A</p>
<p><em><span>Use #40 (A4) as pilot hole, then open to #30 (A5)</span></em></p>
<p></p>
<p>I agree to pilot with #40 and then expand to #30, <em>but</em> a #40 is for <span style="text-decoration: underline;">A3</span> (3/32") rivets and silver clecos and</p>
<p>a #30 is for <span style="text-decoration: underline;">A4</span> (1/8") rivets and copper clecos. (A5's are 5/32"-black clecos)</p>
<p></p>
<p>John</p>
<p>N750A</p> When I first began there was…tag:zenith.aero,2018-01-08:2606393:Comment:6062832018-01-08T22:14:14.180ZJoe Hopwoodhttps://zenith.aero/profile/JoeHopwood
<p>When I first began there was a document that gave general instructions. Also there were numerous references to other documents that contained accepted procedures. I would recommend a review of these. It could prevent much rework.</p>
<p>When I first began there was a document that gave general instructions. Also there were numerous references to other documents that contained accepted procedures. I would recommend a review of these. It could prevent much rework.</p> Use #40 (A4) as pilot hole, t…tag:zenith.aero,2018-01-08:2606393:Comment:6062222018-01-08T22:08:22.434ZLoren Warnerhttps://zenith.aero/profile/LorenWarner
<p>Use #40 (A4) as pilot hole, then open to #30 (A5). After which, debur, etch, and prime accordingly. </p>
<p>Use #40 (A4) as pilot hole, then open to #30 (A5). After which, debur, etch, and prime accordingly. </p>