Need to drill a 7mm hole, and feel too stupid to figure this out

So I bought the factory spoiler thing for the 4Runner I just purchased, and I'm installing it to the factory spec which calls for 5M rivnuts. The instructions say to use a 7.60 drill but for the hole and I've wasted 2 days looking for the proper drill bit which doesn't seem to exist. I don't see any reason I can't just drill a 7mm hole, right?

If so, what size drill bit should I use? This thing is turning into way more of a headache than it should be. Math nor construction have ever been my strong suit.

 

19/64

 

Do a 19/64 = .2969"
7.6mm = .299"
When feeling stupid just google it.

 

And 7mm way small if you truly need 7.6mm

 

I feel like I would constantly be on Google

 

The actual Toyota instruction sheet says to use a 7.60 drill bit, but the riv nut kit I have says to use a 7 mm hole, so I feel like as long as I get the riv nut in, the rest shouldn't matter too much.

 

I had teacher once that would tell his students "don't try to remember it that's why we buy you books stupid"
Google is the new encyclopedia.

 

This is why tap and drill equivalency charts exist. Slap one up in your shop and it’s a no brainer.

Fraction charts are popular too

 

Are you using the riv nuts from the spoiler or from a kit?

 

A kit that I ordered from Amazon but it's not here yet, I was just reading the instructions.


I do have the factory screws though that go into the rivnut.

 

If you used the exact size then you'll need to be extremely precise on the placement. The 7.6 mm (19/64th) gives you nominal clearances for a little slop in placement. Measure thrice, cut once, and use a fine tip punch to mark the hole so your drill bit doesn't wander.

-J

 

I have already drilled the pilot holes so really hoping I didn't mess them up. If so, i might just have to do without the spoiler and have holes in the tailgate.

 

Gospel!

 

McMaster Carr.

https://www.mcmaster.com/drill-bits/size~7-6-mm/

Probably Amazon as well.

 

Damn, only 6 bucks but they don't sell to the public and it's not on Amazon.

 

They do sell to the public, you need to create a user account. I buy stuff from them all the time for various projects. I use them quite a bit for work as well, but there's no link between my work and private accounts. They're usually my go-to for oddball stuff.

Amazon sucks because sometimes it can be a pain to find things. For example, searching for "7.6mm jobber drill bit" turned up nothing on the first page. Searching for "7.6mm metric jobber drill bit" turns up a three pack, though it has no reviews: https://www.amazon.com/7-6mm-Metric...=7.6mm+metric+jobber+drill+bit,aps,353&sr=8-2