Author Topic: drill sizes for taps  (Read 2505 times)

Offline BIG MIKE

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drill sizes for taps
« on: December 08, 2002 - 07:36:09 PM »
we all have broken bolts or trying to adapt new to work so they are safe to drive so  here is the charts

remember that

 5/16 + 3/16= 8/16 which  is 1/2 the wrench size
3/8 + 3/16= 9/16 the wrench size

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« Last Edit: December 08, 2002 - 07:38:05 PM by BIG MIKE »




Offline BIG MIKE

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Re:drill sizes for taps
« Reply #1 on: December 08, 2002 - 07:40:52 PM »
more

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Offline BIG MIKE

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Re:drill sizes for taps
« Reply #2 on: December 08, 2002 - 07:45:22 PM »
the last

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Offline Skeletoil

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Re: drill sizes for taps
« Reply #3 on: April 07, 2005 - 08:40:34 PM »
Usually the 75% theory works. Use a drill as close to 75% of the thread diameter. Not sure about self tapping screws. There are always exceptions, but this has worked for me.

Offline 4Cruizn

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Re: drill sizes for taps
« Reply #4 on: April 07, 2005 - 11:21:16 PM »
Whoa dude . . . surfin' some old sh!t here . . . .  :sleep:   No disrespect intended . . .  :worship:    :grinyes:  :grinyes:  :grinyes:

Offline Killer_Mopar

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Re: drill sizes for taps
« Reply #5 on: April 08, 2005 - 12:51:45 AM »
I think the admin deleted the pics and brought it back to the new topics page......if not, than I couldnt have phrased it better 4C
70 Challenger R/T SE - The never-ending project........