Metric to Standard conversion help

[godale03]

Hey Guys,

I need to drill the holes for the wing for my truck and it calls for 2 7mm holes. I do not have a 7mm drill bit. Does anyone know what standard bit I could use in its place, if I can even use a stadard bit? Thanks guys.

Tom

 

[Monkey Wrench]

Hey man, try this: http://www.sciencemadesimple.net/length.php

It says .28 inches.

 

[godale03]

The closest bit I can come up with is 3/8 of an inch bit. Does anybody know if this will work? Or will it make the hole too big? Thanks

Tom

 

[Monkey Wrench]

Do you have the screw that you're going to use? I usually just try to eye-ball it.

 

[godale03]

Do you have the screw that you're going to use? I usually just try to eye-ball it.

Yep I do have the screw... I will give that a shot. I just didn't want to drill, and then find out I drilled a hole too big. Thanks.

Tom

 

[Revo Rancher]

Use a body reamer. Works on the wings, too.

 

[McoupeRS4EVO]

3/8 is 10 mm so that is definatly to big..


l

 

[ThEvil0nE]

If it says .28 of an inch, 1/4" = .25" so the closest you can go without over shooting .28" is .25" which is 1/4".

I'd say go with 1/4"...



...final answer.

 

[sweetdiesel]

Here is a good conversion chart

http://www.csgnetwork.com/drillsizeconvert.html

Do you have a pair of calipers? If the 7mm wing post is undersized go with a 17/64 bit, if oversized go with 9/32.

 

[ThEvil0nE]

Either way, the difference of .01-.05 is negligble... so it's safe both ways with sweetdiesel's calculations and mine. It's now up to what drill size is available to you. I would suggest you test drill sizes on a test board/sheet before drilling it to your wing to be safe