Quick Help, Whats the Drill Bit and Tap size for a -10 Return?
06-30-2008, 11:57 AM
#6
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http://store.summitracing.com/egnsea...115+4294906753
Depending on the NPT size of the -10 return fitting:
1/2-14 NPT TAP 45/64" bit Or 11/16
3/8-18 NPT TAP 37/64" bit Or 9/16
3/4-14 NPT TAP 59/64" bit Or 15/16
Depending on the NPT size of the -10 return fitting:
1/2-14 NPT TAP 45/64" bit Or 11/16
3/8-18 NPT TAP 37/64" bit Or 9/16
3/4-14 NPT TAP 59/64" bit Or 15/16
Last edited by Derek @ EDO; 06-30-2008 at 12:21 PM.
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06-30-2008, 12:11 PM
#10
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3/8-18 NPT 37/64"Bit
You should be able to use a 9/16 bit, they are easier to find...
Lowes should have it.
If not, try your local Fastenal.
Derek
Last edited by Derek @ EDO; 06-30-2008 at 12:22 PM.
06-30-2008, 02:10 PM
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So I went to lowes and Home depot and they have never heard of a drill bit R?
Wasnt able to find a 1/8 tap either =/.
Going to try ACE hardware after work.
Wasnt able to find a 1/8 tap either =/.
Going to try ACE hardware after work.
06-30-2008, 06:58 PM
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Ended up being the
3/8-18 NPT TAP 37/64" bit Or 9/16
I was able to find a 1/8 tap. But the drill bit R was not there. I was told that a 21/64 is the same thing. Is this true?
3/8-18 NPT TAP 37/64" bit Or 9/16
I was able to find a 1/8 tap. But the drill bit R was not there. I was told that a 21/64 is the same thing. Is this true?
06-30-2008, 07:30 PM
#17
http://www.engineersedge.com/drill_sizes.htm
Looks like a "R" bit is a .3390, closest down size is a 21/64" (.3281) or up size to a 11/32" (.3437)
I pulled that off my old machinist cheat guide, Im guessing that chart I posted is the same
Looks like a "R" bit is a .3390, closest down size is a 21/64" (.3281) or up size to a 11/32" (.3437)
I pulled that off my old machinist cheat guide, Im guessing that chart I posted is the same
06-30-2008, 07:36 PM
#18
BTW, go to any fastner supply (around here we have Automotive Fasnters) and they will surely have the "R" size bit you require, or you can order it from Grainger.
http://www.grainger.com/Grainger/items/1G683
You can use the 21/64" but its gonna make for a pretty tight tap and your gonna have to make sure and use liberal amount of cutting oil and back up alot cleaning out the threads.
http://www.grainger.com/Grainger/items/1G683
You can use the 21/64" but its gonna make for a pretty tight tap and your gonna have to make sure and use liberal amount of cutting oil and back up alot cleaning out the threads.
07-02-2008, 07:26 PM
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Just like this:
http://www.acetoolonline.com/Product...rce=googlebase
Here is the bit you need:
http://www.buy.com/retail/product.as...45&dcaid=17902
a standard 9/16" bit will work...
Where did this type R bit come from???
Thats not what you need.
Derek
Last edited by Derek @ EDO; 07-02-2008 at 07:35 PM.