threading a hole 8-32

[knownothingmags]

what is the diameter of a hole need to be to properly thread it 8-32?

thankyou,
KNM.

[need4reebs]

would finding out wat size a #29 drill bit is answer this? thats the drill bit that came with my 8-32 tap? but it just says #29….no actual hole diameter? maybe there is a guide for shNit like this…if you find that there is a guide will ya post it up?

[tolar250]

this page is where i go when i need tap and drill info. http://www.physics.ncsu.edu/pearl/Tap_Drill_Chart.html

a #29 drill is .1360

[need4reebs]

thanks big Dawg!!:headbang:

[knownothingmags]

thankyou,

but I don't see and related threading guide for this application.

[Spider-TW]

thankyou,

but I don't see and related threading guide for this application.

Left column is the number (8), number of threads per inch is 32 (within the #8 row).

Notice that the drill is a little larger for stainless, iron, and plain steel. That lets you cut a little less thread depth, which is friendly for your tap.

[knownothingmags]

Left column is the number (8), number of threads per inch is 32 (within the #8 row).

Notice that the drill is a little larger for stainless, iron, and plain steel. That lets you cut a little less thread depth, which is friendly for your tap.
ahh gotcha.

people has explained it to me many times, I just cant seem to get it to stick.

thankyou again.

[luke]

This is the one I use for drilling, tapping and just basic drill size info for design.
http://torchmate.com/images/uploads/reference_tables/drill_tap_sizes.pdf