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You should be looking for two taps--5/16 x 24 and a 3/8 x 24. Those two will cover almost all block holes.
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On June 14, 2021 at 8:11 PM rmf3860 rmf3860 <bobfabie@gmail.com> wrote:
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<br>I’ve looked “everywhere” and cannot find a 7/16-24 thread chaser tap to clean out the block holes. I assume I’m correct about the 7/16-24 size.
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Thanks.
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Bob Fabie
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Fredericksburg, VA
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