Subject: [Shop-talk] Redrilling a 1/4-28 hole

From: Ed Reiss <[email-masked]>
Date: Mon, 16 Jan 2023 05:01:25 +0000

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John -- Try a Heli-coil for 1/4-20.

You drill out the current hole and rethread using the heli-coil tap. Then t=
hread in the heli-coil. Presto-change-o -- you now have a 1/4-20 threaded h=
ole

You might find the heli-coil kit at a well-stocked hardware store or Amazon=
.

Heli-coils are the go-to for stripped threads or any other reason an existi=
ng threaded hole is unusable.

Good luck
Ed
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<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
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<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class=3D"elem=
entToProof">John -- Try a Heli-coil for 1/4-20.</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
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<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">You drill out=
 the current hole and rethread using the heli-coil tap. Then thread in the =
heli-coil. Presto-change-o -- you
 now have a 1/4-20 threaded hole</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><br>
</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">You might fin=
d the heli-coil kit at a well-stocked hardware store or Amazon.</span></div=
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><br>
</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Heli-coils ar=
e the go-to for stripped threads or any other reason an existing threaded h=
ole is unusable.</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><br>
</span></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Good luck</sp=
an></div>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Ed</span></di=
v>
<div class=3D"elementToProof" style=3D"font-family: Calibri, Helvetica, san=
s-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 2=
55, 255);">
<span style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt=
; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">--<br>
</span></div>
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