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Buch Community Member
Joined: 27 Feb 2014 Posts: 1184 Location: Copenhagen, Denmark
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Posted: Tue Mar 22, 2016 10:35 am Post subject: Drill and tap mm to inches - size?? |
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I wanna use this real vintage weaver knob in my new blaster build...
But I need to figure out the drill and tap size for the thread in inches...
I got these measurements but apparently I don't understand the different tables online... can any body help? I need the correct drill and tap size in inches...
_________________ Monsieur, azonnal kövessen engem bitte |
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racprops Community Member
Joined: 30 Oct 2006 Posts: 2450 Location: Phoenix AZ
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Posted: Tue Mar 22, 2016 8:51 pm Post subject: |
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Problem is those numbers do not match up to any real size or thread.
.1645 the closes is .1614 = 1/4 inch or .1654 which = nothing or 4.2MM.
4.17MM is that...
So the closes is .1653 inch 4.2mm is for a 5mm-0.90mm
OR under sizing it, the next screw below the above is: DRUM ROLL:
10/32 tap drill bit #21
AND that is what I use for those screws.
Rich _________________ I never have enough time to do all I want to do! |
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Buch Community Member
Joined: 27 Feb 2014 Posts: 1184 Location: Copenhagen, Denmark
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Posted: Wed Mar 23, 2016 4:15 am Post subject: |
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Thanks again, Rich
I'll go for the 10/32 tap drill bit #21.... _________________ Monsieur, azonnal kövessen engem bitte |
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